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denoland-deno/cli/tsc/dts/lib.deno.unstable.d.ts
Marvin Hagemeister 615bf8a4b0
feat(unstable): type lint plugin visitor (#28005)
This PR strongly types the JS plugin visitor.

```ts
export default {
  name: "foo",
  rules: {
    bar: {
      create(ctx) {
        return {
          // Plain ast node visitor
          Identifier(node) {},

          // Exit visitor
          "Identifier:exit"(node) {},

          // Custom selectors, `node` needs to be typed manually
          "FunctionDeclaration > Identifier"(node: Deno.lint.Identifier) {}
        }
      }
    }
  }
}

```

Follow up to https://github.com/denoland/deno/pull/27977
2025-02-07 13:01:33 +01:00

6197 lines
177 KiB
TypeScript

// Copyright 2018-2025 the Deno authors. MIT license.
/// <reference no-default-lib="true" />
/// <reference lib="deno.ns" />
/// <reference lib="deno.broadcast_channel" />
/// <reference lib="esnext" />
/// <reference lib="es2022.intl" />
declare namespace Deno {
export {}; // stop default export type behavior
/** **UNSTABLE**: New API, yet to be vetted.
*
* Creates a presentable WebGPU surface from given window and
* display handles.
*
* The parameters correspond to the table below:
*
* | system | winHandle | displayHandle |
* | ----------------- | ------------- | --------------- |
* | "cocoa" (macOS) | `NSView*` | - |
* | "win32" (Windows) | `HWND` | `HINSTANCE` |
* | "x11" (Linux) | Xlib `Window` | Xlib `Display*` |
* | "wayland" (Linux) | `wl_surface*` | `wl_display*` |
*
* @category GPU
* @experimental
*/
export class UnsafeWindowSurface {
constructor(
options: {
system: "cocoa" | "win32" | "x11" | "wayland";
windowHandle: Deno.PointerValue<unknown>;
displayHandle: Deno.PointerValue<unknown>;
width: number;
height: number;
},
);
getContext(context: "webgpu"): GPUCanvasContext;
present(): void;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* Represents membership of a IPv4 multicast group.
*
* @category Network
* @experimental
*/
export interface MulticastV4Membership {
/** Leaves the multicast group. */
leave: () => Promise<void>;
/** Sets the multicast loopback option. If enabled, multicast packets will be looped back to the local socket. */
setLoopback: (loopback: boolean) => Promise<void>;
/** Sets the time-to-live of outgoing multicast packets for this socket. */
setTTL: (ttl: number) => Promise<void>;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* Represents membership of a IPv6 multicast group.
*
* @category Network
* @experimental
*/
export interface MulticastV6Membership {
/** Leaves the multicast group. */
leave: () => Promise<void>;
/** Sets the multicast loopback option. If enabled, multicast packets will be looped back to the local socket. */
setLoopback: (loopback: boolean) => Promise<void>;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* A generic transport listener for message-oriented protocols.
*
* @category Network
* @experimental
*/
export interface DatagramConn
extends AsyncIterable<[Uint8Array<ArrayBuffer>, Addr]> {
/** Joins an IPv4 multicast group. */
joinMulticastV4(
address: string,
networkInterface: string,
): Promise<MulticastV4Membership>;
/** Joins an IPv6 multicast group. */
joinMulticastV6(
address: string,
networkInterface: number,
): Promise<MulticastV6Membership>;
/** Waits for and resolves to the next message to the instance.
*
* Messages are received in the format of a tuple containing the data array
* and the address information.
*/
receive(p?: Uint8Array): Promise<[Uint8Array<ArrayBuffer>, Addr]>;
/** Sends a message to the target via the connection. The method resolves
* with the number of bytes sent. */
send(p: Uint8Array, addr: Addr): Promise<number>;
/** Close closes the socket. Any pending message promises will be rejected
* with errors. */
close(): void;
/** Return the address of the instance. */
readonly addr: Addr;
[Symbol.asyncIterator](): AsyncIterableIterator<
[Uint8Array<ArrayBuffer>, Addr]
>;
}
/**
* @category Network
* @experimental
*/
export interface TcpListenOptions extends ListenOptions {
/** When `true` the SO_REUSEPORT flag will be set on the listener. This
* allows multiple processes to listen on the same address and port.
*
* On Linux this will cause the kernel to distribute incoming connections
* across the different processes that are listening on the same address and
* port.
*
* This flag is only supported on Linux. It is silently ignored on other
* platforms.
*
* @default {false} */
reusePort?: boolean;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* Unstable options which can be set when opening a datagram listener via
* {@linkcode Deno.listenDatagram}.
*
* @category Network
* @experimental
*/
export interface UdpListenOptions extends ListenOptions {
/** When `true` the specified address will be reused, even if another
* process has already bound a socket on it. This effectively steals the
* socket from the listener.
*
* @default {false} */
reuseAddress?: boolean;
/** When `true`, sent multicast packets will be looped back to the local socket.
*
* @default {false} */
loopback?: boolean;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* Listen announces on the local transport address.
*
* ```ts
* const listener1 = Deno.listenDatagram({
* port: 80,
* transport: "udp"
* });
* const listener2 = Deno.listenDatagram({
* hostname: "golang.org",
* port: 80,
* transport: "udp"
* });
* ```
*
* Requires `allow-net` permission.
*
* @tags allow-net
* @category Network
* @experimental
*/
export function listenDatagram(
options: UdpListenOptions & { transport: "udp" },
): DatagramConn;
/** **UNSTABLE**: New API, yet to be vetted.
*
* Listen announces on the local transport address.
*
* ```ts
* const listener = Deno.listenDatagram({
* path: "/foo/bar.sock",
* transport: "unixpacket"
* });
* ```
*
* Requires `allow-read` and `allow-write` permission.
*
* @tags allow-read, allow-write
* @category Network
* @experimental
*/
export function listenDatagram(
options: UnixListenOptions & { transport: "unixpacket" },
): DatagramConn;
/** **UNSTABLE**: New API, yet to be vetted.
*
* Open a new {@linkcode Deno.Kv} connection to persist data.
*
* When a path is provided, the database will be persisted to disk at that
* path. Read and write access to the file is required.
*
* When no path is provided, the database will be opened in a default path for
* the current script. This location is persistent across script runs and is
* keyed on the origin storage key (the same key that is used to determine
* `localStorage` persistence). More information about the origin storage key
* can be found in the Deno Manual.
*
* @tags allow-read, allow-write
* @category Cloud
* @experimental
*/
export function openKv(path?: string): Promise<Kv>;
/** **UNSTABLE**: New API, yet to be vetted.
*
* CronScheduleExpression is used as the type of `minute`, `hour`,
* `dayOfMonth`, `month`, and `dayOfWeek` in {@linkcode CronSchedule}.
* @category Cloud
* @experimental
*/
export type CronScheduleExpression = number | { exact: number | number[] } | {
start?: number;
end?: number;
every?: number;
};
/** **UNSTABLE**: New API, yet to be vetted.
*
* CronSchedule is the interface used for JSON format
* cron `schedule`.
* @category Cloud
* @experimental
*/
export interface CronSchedule {
minute?: CronScheduleExpression;
hour?: CronScheduleExpression;
dayOfMonth?: CronScheduleExpression;
month?: CronScheduleExpression;
dayOfWeek?: CronScheduleExpression;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* Create a cron job that will periodically execute the provided handler
* callback based on the specified schedule.
*
* ```ts
* Deno.cron("sample cron", "20 * * * *", () => {
* console.log("cron job executed");
* });
* ```
*
* ```ts
* Deno.cron("sample cron", { hour: { every: 6 } }, () => {
* console.log("cron job executed");
* });
* ```
*
* `schedule` can be a string in the Unix cron format or in JSON format
* as specified by interface {@linkcode CronSchedule}, where time is specified
* using UTC time zone.
*
* @category Cloud
* @experimental
*/
export function cron(
name: string,
schedule: string | CronSchedule,
handler: () => Promise<void> | void,
): Promise<void>;
/** **UNSTABLE**: New API, yet to be vetted.
*
* Create a cron job that will periodically execute the provided handler
* callback based on the specified schedule.
*
* ```ts
* Deno.cron("sample cron", "20 * * * *", {
* backoffSchedule: [10, 20]
* }, () => {
* console.log("cron job executed");
* });
* ```
*
* `schedule` can be a string in the Unix cron format or in JSON format
* as specified by interface {@linkcode CronSchedule}, where time is specified
* using UTC time zone.
*
* `backoffSchedule` option can be used to specify the retry policy for failed
* executions. Each element in the array represents the number of milliseconds
* to wait before retrying the execution. For example, `[1000, 5000, 10000]`
* means that a failed execution will be retried at most 3 times, with 1
* second, 5 seconds, and 10 seconds delay between each retry. There is a
* limit of 5 retries and a maximum interval of 1 hour (3600000 milliseconds).
*
* @category Cloud
* @experimental
*/
export function cron(
name: string,
schedule: string | CronSchedule,
options: { backoffSchedule?: number[]; signal?: AbortSignal },
handler: () => Promise<void> | void,
): Promise<void>;
/** **UNSTABLE**: New API, yet to be vetted.
*
* A key to be persisted in a {@linkcode Deno.Kv}. A key is a sequence
* of {@linkcode Deno.KvKeyPart}s.
*
* Keys are ordered lexicographically by their parts. The first part is the
* most significant, and the last part is the least significant. The order of
* the parts is determined by both the type and the value of the part. The
* relative significance of the types can be found in documentation for the
* {@linkcode Deno.KvKeyPart} type.
*
* Keys have a maximum size of 2048 bytes serialized. If the size of the key
* exceeds this limit, an error will be thrown on the operation that this key
* was passed to.
*
* @category Cloud
* @experimental
*/
export type KvKey = readonly KvKeyPart[];
/** **UNSTABLE**: New API, yet to be vetted.
*
* A single part of a {@linkcode Deno.KvKey}. Parts are ordered
* lexicographically, first by their type, and within a given type by their
* value.
*
* The ordering of types is as follows:
*
* 1. `Uint8Array`
* 2. `string`
* 3. `number`
* 4. `bigint`
* 5. `boolean`
*
* Within a given type, the ordering is as follows:
*
* - `Uint8Array` is ordered by the byte ordering of the array
* - `string` is ordered by the byte ordering of the UTF-8 encoding of the
* string
* - `number` is ordered following this pattern: `-NaN`
* < `-Infinity` < `-100.0` < `-1.0` < -`0.5` < `-0.0` < `0.0` < `0.5`
* < `1.0` < `100.0` < `Infinity` < `NaN`
* - `bigint` is ordered by mathematical ordering, with the largest negative
* number being the least first value, and the largest positive number
* being the last value
* - `boolean` is ordered by `false` < `true`
*
* This means that the part `1.0` (a number) is ordered before the part `2.0`
* (also a number), but is greater than the part `0n` (a bigint), because
* `1.0` is a number and `0n` is a bigint, and type ordering has precedence
* over the ordering of values within a type.
*
* @category Cloud
* @experimental
*/
export type KvKeyPart =
| Uint8Array
| string
| number
| bigint
| boolean
| symbol;
/** **UNSTABLE**: New API, yet to be vetted.
*
* Consistency level of a KV operation.
*
* - `strong` - This operation must be strongly-consistent.
* - `eventual` - Eventually-consistent behavior is allowed.
*
* @category Cloud
* @experimental
*/
export type KvConsistencyLevel = "strong" | "eventual";
/** **UNSTABLE**: New API, yet to be vetted.
*
* A selector that selects the range of data returned by a list operation on a
* {@linkcode Deno.Kv}.
*
* The selector can either be a prefix selector or a range selector. A prefix
* selector selects all keys that start with the given prefix (optionally
* starting at a given key). A range selector selects all keys that are
* lexicographically between the given start and end keys.
*
* @category Cloud
* @experimental
*/
export type KvListSelector =
| { prefix: KvKey }
| { prefix: KvKey; start: KvKey }
| { prefix: KvKey; end: KvKey }
| { start: KvKey; end: KvKey };
/** **UNSTABLE**: New API, yet to be vetted.
*
* A mutation to a key in a {@linkcode Deno.Kv}. A mutation is a
* combination of a key, a value, and a type. The type determines how the
* mutation is applied to the key.
*
* - `set` - Sets the value of the key to the given value, overwriting any
* existing value. Optionally an `expireIn` option can be specified to
* set a time-to-live (TTL) for the key. The TTL is specified in
* milliseconds, and the key will be deleted from the database at earliest
* after the specified number of milliseconds have elapsed. Once the
* specified duration has passed, the key may still be visible for some
* additional time. If the `expireIn` option is not specified, the key will
* not expire.
* - `delete` - Deletes the key from the database. The mutation is a no-op if
* the key does not exist.
* - `sum` - Adds the given value to the existing value of the key. Both the
* value specified in the mutation, and any existing value must be of type
* `Deno.KvU64`. If the key does not exist, the value is set to the given
* value (summed with 0). If the result of the sum overflows an unsigned
* 64-bit integer, the result is wrapped around.
* - `max` - Sets the value of the key to the maximum of the existing value
* and the given value. Both the value specified in the mutation, and any
* existing value must be of type `Deno.KvU64`. If the key does not exist,
* the value is set to the given value.
* - `min` - Sets the value of the key to the minimum of the existing value
* and the given value. Both the value specified in the mutation, and any
* existing value must be of type `Deno.KvU64`. If the key does not exist,
* the value is set to the given value.
*
* @category Cloud
* @experimental
*/
export type KvMutation =
& { key: KvKey }
& (
| { type: "set"; value: unknown; expireIn?: number }
| { type: "delete" }
| { type: "sum"; value: KvU64 }
| { type: "max"; value: KvU64 }
| { type: "min"; value: KvU64 }
);
/** **UNSTABLE**: New API, yet to be vetted.
*
* An iterator over a range of data entries in a {@linkcode Deno.Kv}.
*
* The cursor getter returns the cursor that can be used to resume the
* iteration from the current position in the future.
*
* @category Cloud
* @experimental
*/
export class KvListIterator<T> implements AsyncIterableIterator<KvEntry<T>> {
/**
* Returns the cursor of the current position in the iteration. This cursor
* can be used to resume the iteration from the current position in the
* future by passing it to the `cursor` option of the `list` method.
*/
get cursor(): string;
next(): Promise<IteratorResult<KvEntry<T>, undefined>>;
[Symbol.asyncIterator](): AsyncIterableIterator<KvEntry<T>>;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* A versioned pair of key and value in a {@linkcode Deno.Kv}.
*
* The `versionstamp` is a string that represents the current version of the
* key-value pair. It can be used to perform atomic operations on the KV store
* by passing it to the `check` method of a {@linkcode Deno.AtomicOperation}.
*
* @category Cloud
* @experimental
*/
export interface KvEntry<T> {
key: KvKey;
value: T;
versionstamp: string;
}
/**
* **UNSTABLE**: New API, yet to be vetted.
*
* An optional versioned pair of key and value in a {@linkcode Deno.Kv}.
*
* This is the same as a {@linkcode KvEntry}, but the `value` and `versionstamp`
* fields may be `null` if no value exists for the given key in the KV store.
*
* @category Cloud
* @experimental
*/
export type KvEntryMaybe<T> = KvEntry<T> | {
key: KvKey;
value: null;
versionstamp: null;
};
/** **UNSTABLE**: New API, yet to be vetted.
*
* Options for listing key-value pairs in a {@linkcode Deno.Kv}.
*
* @category Cloud
* @experimental
*/
export interface KvListOptions {
/**
* The maximum number of key-value pairs to return. If not specified, all
* matching key-value pairs will be returned.
*/
limit?: number;
/**
* The cursor to resume the iteration from. If not specified, the iteration
* will start from the beginning.
*/
cursor?: string;
/**
* Whether to reverse the order of the returned key-value pairs. If not
* specified, the order will be ascending from the start of the range as per
* the lexicographical ordering of the keys. If `true`, the order will be
* descending from the end of the range.
*
* The default value is `false`.
*/
reverse?: boolean;
/**
* The consistency level of the list operation. The default consistency
* level is "strong". Some use cases can benefit from using a weaker
* consistency level. For more information on consistency levels, see the
* documentation for {@linkcode Deno.KvConsistencyLevel}.
*
* List operations are performed in batches (in sizes specified by the
* `batchSize` option). The consistency level of the list operation is
* applied to each batch individually. This means that while each batch is
* guaranteed to be consistent within itself, the entire list operation may
* not be consistent across batches because a mutation may be applied to a
* key-value pair between batches, in a batch that has already been returned
* by the list operation.
*/
consistency?: KvConsistencyLevel;
/**
* The size of the batches in which the list operation is performed. Larger
* or smaller batch sizes may positively or negatively affect the
* performance of a list operation depending on the specific use case and
* iteration behavior. Slow iterating queries may benefit from using a
* smaller batch size for increased overall consistency, while fast
* iterating queries may benefit from using a larger batch size for better
* performance.
*
* The default batch size is equal to the `limit` option, or 100 if this is
* unset. The maximum value for this option is 500. Larger values will be
* clamped.
*/
batchSize?: number;
}
/**
* @category Cloud
* @experimental
*/
export interface KvCommitResult {
ok: true;
/** The versionstamp of the value committed to KV. */
versionstamp: string;
}
/**
* @category Cloud
* @experimental
*/
export interface KvCommitError {
ok: false;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* A check to perform as part of a {@linkcode Deno.AtomicOperation}. The check
* will fail if the versionstamp for the key-value pair in the KV store does
* not match the given versionstamp. A check with a `null` versionstamp checks
* that the key-value pair does not currently exist in the KV store.
*
* @category Cloud
* @experimental
*/
export interface AtomicCheck {
key: KvKey;
versionstamp: string | null;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* An operation on a {@linkcode Deno.Kv} that can be performed
* atomically. Atomic operations do not auto-commit, and must be committed
* explicitly by calling the `commit` method.
*
* Atomic operations can be used to perform multiple mutations on the KV store
* in a single atomic transaction. They can also be used to perform
* conditional mutations by specifying one or more
* {@linkcode Deno.AtomicCheck}s that ensure that a mutation is only performed
* if the key-value pair in the KV has a specific versionstamp. If any of the
* checks fail, the entire operation will fail and no mutations will be made.
*
* The ordering of mutations is guaranteed to be the same as the ordering of
* the mutations specified in the operation. Checks are performed before any
* mutations are performed. The ordering of checks is unobservable.
*
* Atomic operations can be used to implement optimistic locking, where a
* mutation is only performed if the key-value pair in the KV store has not
* been modified since the last read. This can be done by specifying a check
* that ensures that the versionstamp of the key-value pair matches the
* versionstamp that was read. If the check fails, the mutation will not be
* performed and the operation will fail. One can then retry the read-modify-
* write operation in a loop until it succeeds.
*
* The `commit` method of an atomic operation returns a value indicating
* whether checks passed and mutations were performed. If the operation failed
* because of a failed check, the return value will be a
* {@linkcode Deno.KvCommitError} with an `ok: false` property. If the
* operation failed for any other reason (storage error, invalid value, etc.),
* an exception will be thrown. If the operation succeeded, the return value
* will be a {@linkcode Deno.KvCommitResult} object with a `ok: true` property
* and the versionstamp of the value committed to KV.
*
* @category Cloud
* @experimental
*/
export class AtomicOperation {
/**
* Add to the operation a check that ensures that the versionstamp of the
* key-value pair in the KV store matches the given versionstamp. If the
* check fails, the entire operation will fail and no mutations will be
* performed during the commit.
*/
check(...checks: AtomicCheck[]): this;
/**
* Add to the operation a mutation that performs the specified mutation on
* the specified key if all checks pass during the commit. The types and
* semantics of all available mutations are described in the documentation
* for {@linkcode Deno.KvMutation}.
*/
mutate(...mutations: KvMutation[]): this;
/**
* Shortcut for creating a `sum` mutation. This method wraps `n` in a
* {@linkcode Deno.KvU64}, so the value of `n` must be in the range
* `[0, 2^64-1]`.
*/
sum(key: KvKey, n: bigint): this;
/**
* Shortcut for creating a `min` mutation. This method wraps `n` in a
* {@linkcode Deno.KvU64}, so the value of `n` must be in the range
* `[0, 2^64-1]`.
*/
min(key: KvKey, n: bigint): this;
/**
* Shortcut for creating a `max` mutation. This method wraps `n` in a
* {@linkcode Deno.KvU64}, so the value of `n` must be in the range
* `[0, 2^64-1]`.
*/
max(key: KvKey, n: bigint): this;
/**
* Add to the operation a mutation that sets the value of the specified key
* to the specified value if all checks pass during the commit.
*
* Optionally an `expireIn` option can be specified to set a time-to-live
* (TTL) for the key. The TTL is specified in milliseconds, and the key will
* be deleted from the database at earliest after the specified number of
* milliseconds have elapsed. Once the specified duration has passed, the
* key may still be visible for some additional time. If the `expireIn`
* option is not specified, the key will not expire.
*/
set(key: KvKey, value: unknown, options?: { expireIn?: number }): this;
/**
* Add to the operation a mutation that deletes the specified key if all
* checks pass during the commit.
*/
delete(key: KvKey): this;
/**
* Add to the operation a mutation that enqueues a value into the queue
* if all checks pass during the commit.
*/
enqueue(
value: unknown,
options?: {
delay?: number;
keysIfUndelivered?: KvKey[];
backoffSchedule?: number[];
},
): this;
/**
* Commit the operation to the KV store. Returns a value indicating whether
* checks passed and mutations were performed. If the operation failed
* because of a failed check, the return value will be a {@linkcode
* Deno.KvCommitError} with an `ok: false` property. If the operation failed
* for any other reason (storage error, invalid value, etc.), an exception
* will be thrown. If the operation succeeded, the return value will be a
* {@linkcode Deno.KvCommitResult} object with a `ok: true` property and the
* versionstamp of the value committed to KV.
*
* If the commit returns `ok: false`, one may create a new atomic operation
* with updated checks and mutations and attempt to commit it again. See the
* note on optimistic locking in the documentation for
* {@linkcode Deno.AtomicOperation}.
*/
commit(): Promise<KvCommitResult | KvCommitError>;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* A key-value database that can be used to store and retrieve data.
*
* Data is stored as key-value pairs, where the key is a {@linkcode Deno.KvKey}
* and the value is an arbitrary structured-serializable JavaScript value.
* Keys are ordered lexicographically as described in the documentation for
* {@linkcode Deno.KvKey}. Keys are unique within a database, and the last
* value set for a given key is the one that is returned when reading the
* key. Keys can be deleted from the database, in which case they will no
* longer be returned when reading keys.
*
* Values can be any structured-serializable JavaScript value (objects,
* arrays, strings, numbers, etc.). The special value {@linkcode Deno.KvU64}
* can be used to store 64-bit unsigned integers in the database. This special
* value can not be nested within other objects or arrays. In addition to the
* regular database mutation operations, the unsigned 64-bit integer value
* also supports `sum`, `max`, and `min` mutations.
*
* Keys are versioned on write by assigning the key an ever-increasing
* "versionstamp". The versionstamp represents the version of a key-value pair
* in the database at some point in time, and can be used to perform
* transactional operations on the database without requiring any locking.
* This is enabled by atomic operations, which can have conditions that ensure
* that the operation only succeeds if the versionstamp of the key-value pair
* matches an expected versionstamp.
*
* Keys have a maximum length of 2048 bytes after serialization. Values have a
* maximum length of 64 KiB after serialization. Serialization of both keys
* and values is somewhat opaque, but one can usually assume that the
* serialization of any value is about the same length as the resulting string
* of a JSON serialization of that same value. If theses limits are exceeded,
* an exception will be thrown.
*
* @category Cloud
* @experimental
*/
export class Kv implements Disposable {
/**
* Retrieve the value and versionstamp for the given key from the database
* in the form of a {@linkcode Deno.KvEntryMaybe}. If no value exists for
* the key, the returned entry will have a `null` value and versionstamp.
*
* ```ts
* const db = await Deno.openKv();
* const result = await db.get(["foo"]);
* result.key; // ["foo"]
* result.value; // "bar"
* result.versionstamp; // "00000000000000010000"
* ```
*
* The `consistency` option can be used to specify the consistency level
* for the read operation. The default consistency level is "strong". Some
* use cases can benefit from using a weaker consistency level. For more
* information on consistency levels, see the documentation for
* {@linkcode Deno.KvConsistencyLevel}.
*/
get<T = unknown>(
key: KvKey,
options?: { consistency?: KvConsistencyLevel },
): Promise<KvEntryMaybe<T>>;
/**
* Retrieve multiple values and versionstamps from the database in the form
* of an array of {@linkcode Deno.KvEntryMaybe} objects. The returned array
* will have the same length as the `keys` array, and the entries will be in
* the same order as the keys. If no value exists for a given key, the
* returned entry will have a `null` value and versionstamp.
*
* ```ts
* const db = await Deno.openKv();
* const result = await db.getMany([["foo"], ["baz"]]);
* result[0].key; // ["foo"]
* result[0].value; // "bar"
* result[0].versionstamp; // "00000000000000010000"
* result[1].key; // ["baz"]
* result[1].value; // null
* result[1].versionstamp; // null
* ```
*
* The `consistency` option can be used to specify the consistency level
* for the read operation. The default consistency level is "strong". Some
* use cases can benefit from using a weaker consistency level. For more
* information on consistency levels, see the documentation for
* {@linkcode Deno.KvConsistencyLevel}.
*/
getMany<T extends readonly unknown[]>(
keys: readonly [...{ [K in keyof T]: KvKey }],
options?: { consistency?: KvConsistencyLevel },
): Promise<{ [K in keyof T]: KvEntryMaybe<T[K]> }>;
/**
* Set the value for the given key in the database. If a value already
* exists for the key, it will be overwritten.
*
* ```ts
* const db = await Deno.openKv();
* await db.set(["foo"], "bar");
* ```
*
* Optionally an `expireIn` option can be specified to set a time-to-live
* (TTL) for the key. The TTL is specified in milliseconds, and the key will
* be deleted from the database at earliest after the specified number of
* milliseconds have elapsed. Once the specified duration has passed, the
* key may still be visible for some additional time. If the `expireIn`
* option is not specified, the key will not expire.
*/
set(
key: KvKey,
value: unknown,
options?: { expireIn?: number },
): Promise<KvCommitResult>;
/**
* Delete the value for the given key from the database. If no value exists
* for the key, this operation is a no-op.
*
* ```ts
* const db = await Deno.openKv();
* await db.delete(["foo"]);
* ```
*/
delete(key: KvKey): Promise<void>;
/**
* Retrieve a list of keys in the database. The returned list is an
* {@linkcode Deno.KvListIterator} which can be used to iterate over the
* entries in the database.
*
* Each list operation must specify a selector which is used to specify the
* range of keys to return. The selector can either be a prefix selector, or
* a range selector:
*
* - A prefix selector selects all keys that start with the given prefix of
* key parts. For example, the selector `["users"]` will select all keys
* that start with the prefix `["users"]`, such as `["users", "alice"]`
* and `["users", "bob"]`. Note that you can not partially match a key
* part, so the selector `["users", "a"]` will not match the key
* `["users", "alice"]`. A prefix selector may specify a `start` key that
* is used to skip over keys that are lexicographically less than the
* start key.
* - A range selector selects all keys that are lexicographically between
* the given start and end keys (including the start, and excluding the
* end). For example, the selector `["users", "a"], ["users", "n"]` will
* select all keys that start with the prefix `["users"]` and have a
* second key part that is lexicographically between `a` and `n`, such as
* `["users", "alice"]`, `["users", "bob"]`, and `["users", "mike"]`, but
* not `["users", "noa"]` or `["users", "zoe"]`.
*
* ```ts
* const db = await Deno.openKv();
* const entries = db.list({ prefix: ["users"] });
* for await (const entry of entries) {
* entry.key; // ["users", "alice"]
* entry.value; // { name: "Alice" }
* entry.versionstamp; // "00000000000000010000"
* }
* ```
*
* The `options` argument can be used to specify additional options for the
* list operation. See the documentation for {@linkcode Deno.KvListOptions}
* for more information.
*/
list<T = unknown>(
selector: KvListSelector,
options?: KvListOptions,
): KvListIterator<T>;
/**
* Add a value into the database queue to be delivered to the queue
* listener via {@linkcode Deno.Kv.listenQueue}.
*
* ```ts
* const db = await Deno.openKv();
* await db.enqueue("bar");
* ```
*
* The `delay` option can be used to specify the delay (in milliseconds)
* of the value delivery. The default delay is 0, which means immediate
* delivery.
*
* ```ts
* const db = await Deno.openKv();
* await db.enqueue("bar", { delay: 60000 });
* ```
*
* The `keysIfUndelivered` option can be used to specify the keys to
* be set if the value is not successfully delivered to the queue
* listener after several attempts. The values are set to the value of
* the queued message.
*
* The `backoffSchedule` option can be used to specify the retry policy for
* failed message delivery. Each element in the array represents the number of
* milliseconds to wait before retrying the delivery. For example,
* `[1000, 5000, 10000]` means that a failed delivery will be retried
* at most 3 times, with 1 second, 5 seconds, and 10 seconds delay
* between each retry.
*
* ```ts
* const db = await Deno.openKv();
* await db.enqueue("bar", {
* keysIfUndelivered: [["foo", "bar"]],
* backoffSchedule: [1000, 5000, 10000],
* });
* ```
*/
enqueue(
value: unknown,
options?: {
delay?: number;
keysIfUndelivered?: KvKey[];
backoffSchedule?: number[];
},
): Promise<KvCommitResult>;
/**
* Listen for queue values to be delivered from the database queue, which
* were enqueued with {@linkcode Deno.Kv.enqueue}. The provided handler
* callback is invoked on every dequeued value. A failed callback
* invocation is automatically retried multiple times until it succeeds
* or until the maximum number of retries is reached.
*
* ```ts
* const db = await Deno.openKv();
* db.listenQueue(async (msg: unknown) => {
* await db.set(["foo"], msg);
* });
* ```
*/
// deno-lint-ignore no-explicit-any
listenQueue(handler: (value: any) => Promise<void> | void): Promise<void>;
/**
* Create a new {@linkcode Deno.AtomicOperation} object which can be used to
* perform an atomic transaction on the database. This does not perform any
* operations on the database - the atomic transaction must be committed
* explicitly using the {@linkcode Deno.AtomicOperation.commit} method once
* all checks and mutations have been added to the operation.
*/
atomic(): AtomicOperation;
/**
* Watch for changes to the given keys in the database. The returned stream
* is a {@linkcode ReadableStream} that emits a new value whenever any of
* the watched keys change their versionstamp. The emitted value is an array
* of {@linkcode Deno.KvEntryMaybe} objects, with the same length and order
* as the `keys` array. If no value exists for a given key, the returned
* entry will have a `null` value and versionstamp.
*
* The returned stream does not return every single intermediate state of
* the watched keys, but rather only keeps you up to date with the latest
* state of the keys. This means that if a key is modified multiple times
* quickly, you may not receive a notification for every single change, but
* rather only the latest state of the key.
*
* ```ts
* const db = await Deno.openKv();
*
* const stream = db.watch([["foo"], ["bar"]]);
* for await (const entries of stream) {
* entries[0].key; // ["foo"]
* entries[0].value; // "bar"
* entries[0].versionstamp; // "00000000000000010000"
* entries[1].key; // ["bar"]
* entries[1].value; // null
* entries[1].versionstamp; // null
* }
* ```
*
* The `options` argument can be used to specify additional options for the
* watch operation. The `raw` option can be used to specify whether a new
* value should be emitted whenever a mutation occurs on any of the watched
* keys (even if the value of the key does not change, such as deleting a
* deleted key), or only when entries have observably changed in some way.
* When `raw: true` is used, it is possible for the stream to occasionally
* emit values even if no mutations have occurred on any of the watched
* keys. The default value for this option is `false`.
*/
watch<T extends readonly unknown[]>(
keys: readonly [...{ [K in keyof T]: KvKey }],
options?: { raw?: boolean },
): ReadableStream<{ [K in keyof T]: KvEntryMaybe<T[K]> }>;
/**
* Close the database connection. This will prevent any further operations
* from being performed on the database, and interrupt any in-flight
* operations immediately.
*/
close(): void;
/**
* Get a symbol that represents the versionstamp of the current atomic
* operation. This symbol can be used as the last part of a key in
* `.set()`, both directly on the `Kv` object and on an `AtomicOperation`
* object created from this `Kv` instance.
*/
commitVersionstamp(): symbol;
[Symbol.dispose](): void;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* Wrapper type for 64-bit unsigned integers for use as values in a
* {@linkcode Deno.Kv}.
*
* @category Cloud
* @experimental
*/
export class KvU64 {
/** Create a new `KvU64` instance from the given bigint value. If the value
* is signed or greater than 64-bits, an error will be thrown. */
constructor(value: bigint);
/** The value of this unsigned 64-bit integer, represented as a bigint. */
readonly value: bigint;
}
/**
* A namespace containing runtime APIs available in Jupyter notebooks.
*
* When accessed outside of Jupyter notebook context an error will be thrown.
*
* @category Jupyter
* @experimental
*/
export namespace jupyter {
/**
* @category Jupyter
* @experimental
*/
export interface DisplayOptions {
raw?: boolean;
update?: boolean;
display_id?: string;
}
/**
* @category Jupyter
* @experimental
*/
export interface VegaObject {
$schema: string;
[key: string]: unknown;
}
/**
* A collection of supported media types and data for Jupyter frontends.
*
* @category Jupyter
* @experimental
*/
export interface MediaBundle {
"text/plain"?: string;
"text/html"?: string;
"image/svg+xml"?: string;
"text/markdown"?: string;
"application/javascript"?: string;
// Images (per Jupyter spec) must be base64 encoded. We could _allow_
// accepting Uint8Array or ArrayBuffer within `display` calls, however we still
// must encode them for jupyter.
"image/png"?: string; // WISH: Uint8Array | ArrayBuffer
"image/jpeg"?: string; // WISH: Uint8Array | ArrayBuffer
"image/gif"?: string; // WISH: Uint8Array | ArrayBuffer
"application/pdf"?: string; // WISH: Uint8Array | ArrayBuffer
// NOTE: all JSON types must be objects at the top level (no arrays, strings, or other primitives)
"application/json"?: object;
"application/geo+json"?: object;
"application/vdom.v1+json"?: object;
"application/vnd.plotly.v1+json"?: object;
"application/vnd.vega.v5+json"?: VegaObject;
"application/vnd.vegalite.v4+json"?: VegaObject;
"application/vnd.vegalite.v5+json"?: VegaObject;
// Must support a catch all for custom media types / mimetypes
[key: string]: string | object | undefined;
}
/**
* @category Jupyter
* @experimental
*/
export const $display: unique symbol;
/**
* @category Jupyter
* @experimental
*/
export interface Displayable {
[$display]: () => MediaBundle | Promise<MediaBundle>;
}
/**
* Display function for Jupyter Deno Kernel.
* Mimics the behavior of IPython's `display(obj, raw=True)` function to allow
* asynchronous displaying of objects in Jupyter.
*
* @param obj - The object to be displayed
* @param options - Display options with a default { raw: true }
* @category Jupyter
* @experimental
*/
export function display(
obj: unknown,
options?: DisplayOptions,
): Promise<void>;
/**
* Show Markdown in Jupyter frontends with a tagged template function.
*
* Takes a template string and returns a displayable object for Jupyter frontends.
*
* @example
* Create a Markdown view.
*
* ```typescript
* const { md } = Deno.jupyter;
* md`# Notebooks in TypeScript via Deno ![Deno logo](https://github.com/denoland.png?size=32)
*
* * TypeScript ${Deno.version.typescript}
* * V8 ${Deno.version.v8}
* * Deno ${Deno.version.deno}
*
* Interactive compute with Jupyter _built into Deno_!
* `
* ```
*
* @category Jupyter
* @experimental
*/
export function md(
strings: TemplateStringsArray,
...values: unknown[]
): Displayable;
/**
* Show HTML in Jupyter frontends with a tagged template function.
*
* Takes a template string and returns a displayable object for Jupyter frontends.
*
* @example
* Create an HTML view.
* ```typescript
* const { html } = Deno.jupyter;
* html`<h1>Hello, world!</h1>`
* ```
*
* @category Jupyter
* @experimental
*/
export function html(
strings: TemplateStringsArray,
...values: unknown[]
): Displayable;
/**
* SVG Tagged Template Function.
*
* Takes a template string and returns a displayable object for Jupyter frontends.
*
* Example usage:
*
* svg`<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
* <circle cx="50" cy="50" r="40" stroke="green" stroke-width="4" fill="yellow" />
* </svg>`
*
* @category Jupyter
* @experimental
*/
export function svg(
strings: TemplateStringsArray,
...values: unknown[]
): Displayable;
/**
* Display a JPG or PNG image.
*
* ```
* Deno.jupyter.image("./cat.jpg");
* Deno.jupyter.image("./dog.png");
* ```
*
* @category Jupyter
* @experimental
*/
export function image(path: string): Displayable;
/**
* Display a JPG or PNG image.
*
* ```
* const img = Deno.readFileSync("./cat.jpg");
* Deno.jupyter.image(img);
* ```
*
* @category Jupyter
* @experimental
*/
export function image(data: Uint8Array): Displayable;
/**
* Format an object for displaying in Deno
*
* @param obj - The object to be displayed
* @returns Promise<MediaBundle>
*
* @category Jupyter
* @experimental
*/
export function format(obj: unknown): Promise<MediaBundle>;
/**
* Broadcast a message on IO pub channel.
*
* ```
* await Deno.jupyter.broadcast("display_data", {
* data: { "text/html": "<b>Processing.</b>" },
* metadata: {},
* transient: { display_id: "progress" }
* });
*
* await new Promise((resolve) => setTimeout(resolve, 500));
*
* await Deno.jupyter.broadcast("update_display_data", {
* data: { "text/html": "<b>Processing..</b>" },
* metadata: {},
* transient: { display_id: "progress" }
* });
* ```
*
* @category Jupyter
* @experimental
*/
export function broadcast(
msgType: string,
content: Record<string, unknown>,
extra?: {
metadata?: Record<string, unknown>;
buffers?: Uint8Array[];
},
): Promise<void>;
export {}; // only export exports
}
/**
* **UNSTABLE**: New API, yet to be vetted.
*
* APIs for working with the OpenTelemetry observability framework. Deno can
* export traces, metrics, and logs to OpenTelemetry compatible backends via
* the OTLP protocol.
*
* Deno automatically instruments the runtime with OpenTelemetry traces and
* metrics. This data is exported via OTLP to OpenTelemetry compatible
* backends. User logs from the `console` API are exported as OpenTelemetry
* logs via OTLP.
*
* User code can also create custom traces, metrics, and logs using the
* OpenTelemetry API. This is done using the official OpenTelemetry package
* for JavaScript:
* [`npm:@opentelemetry/api`](https://opentelemetry.io/docs/languages/js/).
* Deno integrates with this package to provide tracing, metrics, and trace
* context propagation between native Deno APIs (like `Deno.serve` or `fetch`)
* and custom user code. Deno automatically registers the providers with the
* OpenTelemetry API, so users can start creating custom traces, metrics, and
* logs without any additional setup.
*
* @example Using OpenTelemetry API to create custom traces
* ```ts,ignore
* import { trace } from "npm:@opentelemetry/api@1";
*
* const tracer = trace.getTracer("example-tracer");
*
* async function doWork() {
* return tracer.startActiveSpan("doWork", async (span) => {
* span.setAttribute("key", "value");
* await new Promise((resolve) => setTimeout(resolve, 1000));
* span.end();
* });
* }
*
* Deno.serve(async (req) => {
* await doWork();
* const resp = await fetch("https://example.com");
* return resp;
* });
* ```
*
* @category Telemetry
* @experimental
*/
export namespace telemetry {
/**
* A TracerProvider compatible with OpenTelemetry.js
* https://open-telemetry.github.io/opentelemetry-js/interfaces/_opentelemetry_api.TracerProvider.html
*
* This is a singleton object that implements the OpenTelemetry
* TracerProvider interface.
*
* @category Telemetry
* @experimental
*/
// deno-lint-ignore no-explicit-any
export const tracerProvider: any;
/**
* A ContextManager compatible with OpenTelemetry.js
* https://open-telemetry.github.io/opentelemetry-js/interfaces/_opentelemetry_api.ContextManager.html
*
* This is a singleton object that implements the OpenTelemetry
* ContextManager interface.
*
* @category Telemetry
* @experimental
*/
// deno-lint-ignore no-explicit-any
export const contextManager: any;
/**
* A MeterProvider compatible with OpenTelemetry.js
* https://open-telemetry.github.io/opentelemetry-js/interfaces/_opentelemetry_api.MeterProvider.html
*
* This is a singleton object that implements the OpenTelemetry
* MeterProvider interface.
*
* @category Telemetry
* @experimental
*/
// deno-lint-ignore no-explicit-any
export const meterProvider: any;
export {}; // only export exports
}
/**
* @category Linter
* @experimental
*/
export namespace lint {
/**
* @category Linter
* @experimental
*/
export type Range = [number, number];
/**
* @category Linter
* @experimental
*/
export interface FixData {
range: Range;
text?: string;
}
/**
* @category Linter
* @experimental
*/
export interface Fixer {
insertTextAfter(node: Node, text: string): FixData;
insertTextAfterRange(range: Range, text: string): FixData;
insertTextBefore(node: Node, text: string): FixData;
insertTextBeforeRange(range: Range, text: string): FixData;
remove(node: Node): FixData;
removeRange(range: Range): FixData;
replaceText(node: Node, text: string): FixData;
replaceTextRange(range: Range, text: string): FixData;
}
/**
* @category Linter
* @experimental
*/
export interface ReportData {
node?: Node;
range?: Range;
message: string;
hint?: string;
fix?(fixer: Fixer): FixData;
}
/**
* @category Linter
* @experimental
*/
export interface RuleContext {
id: string;
report(data: ReportData): void;
}
/**
* @category Linter
* @experimental
*/
export type LintVisitor =
& {
[P in Node["type"]]?: (node: Extract<Node, { type: P }>) => void;
}
& {
[P in Node["type"] as `${P}:exit`]?: (
node: Extract<Node, { type: P }>,
) => void;
}
& // Custom selectors which cannot be typed by us
// deno-lint-ignore no-explicit-any
Partial<{ [key: string]: (node: any) => void }>;
/**
* @category Linter
* @experimental
*/
export interface Rule {
create(ctx: RuleContext): LintVisitor;
destroy?(ctx: RuleContext): void;
}
/**
* In your plugins file do something like
*
* ```ts
* export default {
* name: "my-plugin",
* rules: {
* "no-foo": {
* create(ctx) {
* return {
* VariableDeclaration(node) {}
* }
* }
* }
* }
* } satisfies Deno.lint.Plugin
* ```
* @category Linter
* @experimental
*/
export interface Plugin {
name: string;
rules: Record<string, Rule>;
}
/**
* @category Linter
* @experimental
*/
export interface Fix {
range: Range;
text?: string;
}
/**
* @category Linter
* @experimental
*/
export interface Diagnostic {
id: string;
message: string;
hint?: string;
range: Range;
fix?: Fix;
}
/**
* This API is a noop in `deno run`...
* @category Linter
* @experimental
*/
export function runPlugin(
plugin: Plugin,
fileName: string,
source: string,
): Diagnostic[];
/**
* @category Linter
* @experimental
*/
export interface ImportSpecifier {
type: "ImportSpecifier";
range: Range;
imported: Identifier | StringLiteral;
local: Identifier;
importKind: "type" | "value";
}
/**
* @category Linter
* @experimental
*/
export interface ImportDefaultSpecifier {
type: "ImportDefaultSpecifier";
range: Range;
local: Identifier;
}
/**
* @category Linter
* @experimental
*/
export interface ImportNamespaceSpecifier {
type: "ImportNamespaceSpecifier";
range: Range;
local: Identifier;
}
/**
* @category Linter
* @experimental
*/
export interface ImportAttribute {
type: "ImportAttribute";
range: Range;
key: Identifier | Literal;
value: Literal;
}
/**
* An import declaration, examples:
* @category Linter
* @experimental
*/
export interface ImportDeclaration {
type: "ImportDeclaration";
range: Range;
importKind: "type" | "value";
source: StringLiteral;
specifiers: Array<
| ImportDefaultSpecifier
| ImportNamespaceSpecifier
| ImportSpecifier
>;
attributes: ImportAttribute[];
}
/**
* @category Linter
* @experimental
*/
export interface ExportDefaultDeclaration {
type: "ExportDefaultDeclaration";
range: Range;
declaration:
| ClassDeclaration
| Expression
| FunctionDeclaration
| TSDeclareFunction
| TSEnumDeclaration
| TSInterfaceDeclaration
| TSModuleDeclaration
| TSTypeAliasDeclaration
| VariableDeclaration;
exportKind: "type" | "value";
}
/**
* @category Linter
* @experimental
*/
export interface ExportNamedDeclaration {
type: "ExportNamedDeclaration";
range: Range;
exportKind: "type" | "value";
specifiers: ExportSpecifier[];
declaration:
| ClassDeclaration
| FunctionDeclaration
| TSDeclareFunction
| TSEnumDeclaration
| TSImportEqualsDeclaration
| TSInterfaceDeclaration
| TSModuleDeclaration
| TSTypeAliasDeclaration
| VariableDeclaration
| null;
source: StringLiteral | null;
attributes: ImportAttribute[];
}
/**
* @category Linter
* @experimental
*/
export interface ExportAllDeclaration {
type: "ExportAllDeclaration";
range: Range;
exportKind: "type" | "value";
exported: Identifier | null;
source: StringLiteral;
attributes: ImportAttribute[];
}
/**
* @category Linter
* @experimental
*/
export interface TSNamespaceExportDeclaration {
type: "TSNamespaceExportDeclaration";
range: Range;
id: Identifier;
}
/**
* @category Linter
* @experimental
*/
export interface TSImportEqualsDeclaration {
type: "TSImportEqualsDeclaration";
range: Range;
importKind: "type" | "value";
id: Identifier;
moduleReference: Identifier | TSExternalModuleReference | TSQualifiedName;
}
/**
* @category Linter
* @experimental
*/
export interface TSExternalModuleReference {
type: "TSExternalModuleReference";
range: Range;
expression: StringLiteral;
}
/**
* @category Linter
* @experimental
*/
export interface ExportSpecifier {
type: "ExportSpecifier";
range: Range;
exportKind: "type" | "value";
exported: Identifier | StringLiteral;
local: Identifier | StringLiteral;
}
/**
* Variable declaration.
* @category Linter
* @experimental
*/
export interface VariableDeclaration {
type: "VariableDeclaration";
range: Range;
declare: boolean;
kind: "let" | "var" | "const" | "await using" | "using";
declarations: VariableDeclarator[];
}
/**
* A VariableDeclaration can declare multiple variables. This node
* represents a single declaration out of that.
* @category Linter
* @experimental
*/
export interface VariableDeclarator {
type: "VariableDeclarator";
range: Range;
id: ArrayPattern | ObjectPattern | Identifier;
init: Expression | null;
definite: boolean;
}
/**
* Function/Method parameter
* @category Linter
* @experimental
*/
export type Parameter =
| ArrayPattern
| AssignmentPattern
| Identifier
| ObjectPattern
| RestElement
| TSParameterProperty;
/**
* TypeScript accessibility modifiers used in classes
* @category Linter
* @experimental
*/
export type Accessibility = "private" | "protected" | "public";
/**
* Declares a function in the current scope
* @category Linter
* @experimental
*/
export interface FunctionDeclaration {
type: "FunctionDeclaration";
range: Range;
declare: boolean;
async: boolean;
generator: boolean;
id: Identifier | null;
typeParameters: TSTypeParameterDeclaration | undefined;
returnType: TSTypeAnnotation | undefined;
body: BlockStatement | null;
params: Parameter[];
}
/**
* Experimental: Decorators
* @category Linter
* @experimental
*/
export interface Decorator {
type: "Decorator";
range: Range;
expression:
| ArrayExpression
| ArrayPattern
| ArrowFunctionExpression
| CallExpression
| ClassExpression
| FunctionExpression
| Identifier
| JSXElement
| JSXFragment
| Literal
| TemplateLiteral
| MemberExpression
| MetaProperty
| ObjectExpression
| ObjectPattern
| SequenceExpression
| Super
| TaggedTemplateExpression
| ThisExpression
| TSAsExpression
| TSNonNullExpression
| TSTypeAssertion;
}
/**
* Declares a class in the current scope
* @category Linter
* @experimental
*/
export interface ClassDeclaration {
type: "ClassDeclaration";
range: Range;
declare: boolean;
abstract: boolean;
id: Identifier | null;
superClass:
| ArrayExpression
| ArrayPattern
| ArrowFunctionExpression
| CallExpression
| ClassExpression
| FunctionExpression
| Identifier
| JSXElement
| JSXFragment
| Literal
| TemplateLiteral
| MemberExpression
| MetaProperty
| ObjectExpression
| ObjectPattern
| SequenceExpression
| Super
| TaggedTemplateExpression
| ThisExpression
| TSAsExpression
| TSNonNullExpression
| TSTypeAssertion
| null;
implements: TSClassImplements[];
body: ClassBody;
}
/**
* Similar to ClassDeclaration but for declaring a class as an
* expression. The main difference is that the class name(=id) can
* be omitted.
* @category Linter
* @experimental
*/
export interface ClassExpression {
type: "ClassExpression";
range: Range;
declare: boolean;
abstract: boolean;
id: Identifier | null;
superClass:
| ArrayExpression
| ArrayPattern
| ArrowFunctionExpression
| CallExpression
| ClassExpression
| FunctionExpression
| Identifier
| JSXElement
| JSXFragment
| Literal
| TemplateLiteral
| MemberExpression
| MetaProperty
| ObjectExpression
| ObjectPattern
| SequenceExpression
| Super
| TaggedTemplateExpression
| ThisExpression
| TSAsExpression
| TSNonNullExpression
| TSTypeAssertion
| null;
superTypeArguments: TSTypeParameterInstantiation | undefined;
typeParameters: TSTypeParameterDeclaration | undefined;
implements: TSClassImplements[];
body: ClassBody;
}
/**
* Represents the body of a class and contains all members
* @category Linter
* @experimental
*/
export interface ClassBody {
type: "ClassBody";
range: Range;
body: Array<
| AccessorProperty
| MethodDefinition
| PropertyDefinition
| StaticBlock
// Stage 1 Proposal:
// https://github.com/tc39/proposal-grouped-and-auto-accessors
// | TSAbstractAccessorProperty
| TSAbstractMethodDefinition
| TSAbstractPropertyDefinition
| TSIndexSignature
>;
}
/**
* Static class initializiation block.
* @category Linter
* @experimental
*/
export interface StaticBlock {
type: "StaticBlock";
range: Range;
body: Statement[];
}
// Stage 1 Proposal:
// https://github.com/tc39/proposal-grouped-and-auto-accessors
// | TSAbstractAccessorProperty
/**
* @category Linter
* @experimental
*/
export interface AccessorProperty {
type: "AccessorProperty";
range: Range;
declare: boolean;
computed: boolean;
optional: boolean;
override: boolean;
readonly: boolean;
static: boolean;
accessibility: Accessibility | undefined;
decorators: Decorator[];
key: Expression | Identifier | NumberLiteral | StringLiteral;
value: Expression | null;
}
/**
* @category Linter
* @experimental
*/
export interface PropertyDefinition {
type: "PropertyDefinition";
range: Range;
declare: boolean;
computed: boolean;
optional: boolean;
override: boolean;
readonly: boolean;
static: boolean;
accessibility: Accessibility | undefined;
decorators: Decorator[];
key: Expression | Identifier | NumberLiteral | StringLiteral;
value: Expression | null;
typeAnnotation: TSTypeAnnotation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface MethodDefinition {
type: "MethodDefinition";
range: Range;
declare: boolean;
computed: boolean;
optional: boolean;
override: boolean;
readonly: boolean;
static: boolean;
kind: "constructor" | "get" | "method" | "set";
accessibility: Accessibility | undefined;
decorators: Decorator[];
key:
| PrivateIdentifier
| Identifier
| NumberLiteral
| StringLiteral
| Expression;
value: FunctionExpression | TSEmptyBodyFunctionExpression;
}
/**
* @category Linter
* @experimental
*/
export interface BlockStatement {
type: "BlockStatement";
range: Range;
body: Statement[];
}
/**
* The `debugger;` statement.
* @category Linter
* @experimental
*/
export interface DebuggerStatement {
type: "DebuggerStatement";
range: Range;
}
/**
* Legacy JavaScript feature, that's discouraged from being used today.
* @deprecated
* @category Linter
* @experimental
*/
export interface WithStatement {
type: "WithStatement";
range: Range;
object: Expression;
body: Statement;
}
/**
* Returns a value from a function.
* @category Linter
* @experimental
*/
export interface ReturnStatement {
type: "ReturnStatement";
range: Range;
argument: Expression | null;
}
/**
* Custom control flow based on labels.
* @category Linter
* @experimental
*/
export interface LabeledStatement {
type: "LabeledStatement";
range: Range;
label: Identifier;
body: Statement;
}
/**
* Break any loop or labeled statement, example:
*
* ```ts
* while (true) {
* break;
* }
*
* for (let i = 0; i < 10; i++) {
* if (i > 5) break;
* }
* ```
* @category Linter
* @experimental
*/
export interface BreakStatement {
type: "BreakStatement";
range: Range;
label: Identifier | null;
}
/**
* Terminates the current loop and continues with the next iteration.
* @category Linter
* @experimental
*/
export interface ContinueStatement {
type: "ContinueStatement";
range: Range;
label: Identifier | null;
}
/**
* Execute a statement the test passes, otherwise the alternate
* statement, if it was defined.
* @category Linter
* @experimental
*/
export interface IfStatement {
type: "IfStatement";
range: Range;
test: Expression;
consequent: Statement;
alternate: Statement | null;
}
/**
* Match an expression against a series of cases.
* @category Linter
* @experimental
*/
export interface SwitchStatement {
type: "SwitchStatement";
range: Range;
discriminant: Expression;
cases: SwitchCase[];
}
/**
* A single case of a SwitchStatement.
* @category Linter
* @experimental
*/
export interface SwitchCase {
type: "SwitchCase";
range: Range;
test: Expression | null;
consequent: Statement[];
}
/**
* Throw a user defined exception. Stops execution
* of the current function.
* @category Linter
* @experimental
*/
export interface ThrowStatement {
type: "ThrowStatement";
range: Range;
argument: Expression;
}
/**
* Run a loop while the test expression is truthy.
* @category Linter
* @experimental
*/
export interface WhileStatement {
type: "WhileStatement";
range: Range;
test: Expression;
body: Statement;
}
/**
* Re-run loop for as long as test expression is truthy.
* @category Linter
* @experimental
*/
export interface DoWhileStatement {
type: "DoWhileStatement";
range: Range;
test: Expression;
body: Statement;
}
/**
* Classic for-loop.
* @category Linter
* @experimental
*/
export interface ForStatement {
type: "ForStatement";
range: Range;
init: Expression | VariableDeclaration | null;
test: Expression | null;
update: Expression | null;
body: Statement;
}
/**
* Enumerate over all enumerable string properties of an object.
* @category Linter
* @experimental
*/
export interface ForInStatement {
type: "ForInStatement";
range: Range;
left: Expression | VariableDeclaration;
right: Expression;
body: Statement;
}
/**
* Iterate over sequence of values from an iterator.
* @category Linter
* @experimental
*/
export interface ForOfStatement {
type: "ForOfStatement";
range: Range;
await: boolean;
left: Expression | VariableDeclaration;
right: Expression;
body: Statement;
}
/**
* Statement that holds an expression.
* @category Linter
* @experimental
*/
export interface ExpressionStatement {
type: "ExpressionStatement";
range: Range;
expression: Expression;
}
/**
* Try/catch statement
* @category Linter
* @experimental
*/
export interface TryStatement {
type: "TryStatement";
range: Range;
block: BlockStatement;
handler: CatchClause | null;
finalizer: BlockStatement | null;
}
/**
* The catch clause of a try/catch statement
* @category Linter
* @experimental
*/
export interface CatchClause {
type: "CatchClause";
range: Range;
param: ArrayPattern | ObjectPattern | Identifier | null;
body: BlockStatement;
}
/**
* An array literal
* @category Linter
* @experimental
*/
export interface ArrayExpression {
type: "ArrayExpression";
range: Range;
elements: Array<Expression | SpreadElement>;
}
/**
* An object literal.
* @category Linter
* @experimental
*/
export interface ObjectExpression {
type: "ObjectExpression";
range: Range;
properties: Array<Property | SpreadElement>;
}
/**
* Compare left and right value with the specifier operator.
* @category Linter
* @experimental
*/
export interface BinaryExpression {
type: "BinaryExpression";
range: Range;
operator:
| "&"
| "**"
| "*"
| "||"
| "|"
| "^"
| "==="
| "=="
| "!=="
| "!="
| ">="
| ">>>"
| ">>"
| ">"
| "in"
| "instanceof"
| "<="
| "<<"
| "<"
| "-"
| "%"
| "+"
| "/";
left: Expression | PrivateIdentifier;
right: Expression;
}
/**
* Chain expressions based on the operator specified
* @category Linter
* @experimental
*/
export interface LogicalExpression {
type: "LogicalExpression";
range: Range;
operator: "&&" | "??" | "||";
left: Expression;
right: Expression;
}
/**
* Declare a function as an expression. Similar to `FunctionDeclaration`,
* with an optional name (=id).
* @category Linter
* @experimental
*/
export interface FunctionExpression {
type: "FunctionExpression";
range: Range;
async: boolean;
generator: boolean;
id: Identifier | null;
typeParameters: TSTypeParameterDeclaration | undefined;
params: Parameter[];
returnType: TSTypeAnnotation | undefined;
body: BlockStatement;
}
/**
* Arrow function expression
* @category Linter
* @experimental
*/
export interface ArrowFunctionExpression {
type: "ArrowFunctionExpression";
range: Range;
async: boolean;
generator: boolean;
id: null;
typeParameters: TSTypeParameterDeclaration | undefined;
params: Parameter[];
returnType: TSTypeAnnotation | undefined;
body: BlockStatement | Expression;
}
/**
* The `this` keyword used in classes.
* @category Linter
* @experimental
*/
export interface ThisExpression {
type: "ThisExpression";
range: Range;
}
/**
* The `super` keyword used in classes.
* @category Linter
* @experimental
*/
export interface Super {
type: "Super";
range: Range;
}
/**
* Apply operand on value based on the specified operator.
* @category Linter
* @experimental
*/
export interface UnaryExpression {
type: "UnaryExpression";
range: Range;
operator: "!" | "+" | "~" | "-" | "delete" | "typeof" | "void";
argument: Expression;
}
/**
* Create a new instance of a class.
* @category Linter
* @experimental
*/
export interface NewExpression {
type: "NewExpression";
range: Range;
callee: Expression;
typeArguments: TSTypeParameterInstantiation | undefined;
arguments: Array<Expression | SpreadElement>;
}
/**
* Dynamically import a module.
* @category Linter
* @experimental
*/
export interface ImportExpression {
type: "ImportExpression";
range: Range;
source: Expression;
options: Expression | null;
}
/**
* A function call.
* @category Linter
* @experimental
*/
export interface CallExpression {
type: "CallExpression";
range: Range;
optional: boolean;
callee: Expression;
typeArguments: TSTypeParameterInstantiation | null;
arguments: Array<Expression | SpreadElement>;
}
/**
* Syntactic sugar to increment or decrement a value.
* @category Linter
* @experimental
*/
export interface UpdateExpression {
type: "UpdateExpression";
range: Range;
prefix: boolean;
operator: "++" | "--";
argument: Expression;
}
/**
* Updaate a variable or property.
* @category Linter
* @experimental
*/
export interface AssignmentExpression {
type: "AssignmentExpression";
range: Range;
operator:
| "&&="
| "&="
| "**="
| "*="
| "||="
| "|="
| "^="
| "="
| ">>="
| ">>>="
| "<<="
| "-="
| "%="
| "+="
| "??="
| "/=";
left: Expression;
right: Expression;
}
/**
* Inline if-statement.
* @category Linter
* @experimental
*/
export interface ConditionalExpression {
type: "ConditionalExpression";
range: Range;
test: Expression;
consequent: Expression;
alternate: Expression;
}
/**
* MemberExpression
* @category Linter
* @experimental
*/
export interface MemberExpression {
type: "MemberExpression";
range: Range;
optional: boolean;
computed: boolean;
object: Expression;
property: Expression | Identifier | PrivateIdentifier;
}
/**
* ChainExpression
* @category Linter
* @experimental
*/
export interface ChainExpression {
type: "ChainExpression";
range: Range;
expression:
| CallExpression
| MemberExpression
| TSNonNullExpression;
}
/**
* Execute multiple expressions in sequence.
* @category Linter
* @experimental
*/
export interface SequenceExpression {
type: "SequenceExpression";
range: Range;
expressions: Expression[];
}
/**
* A template literal string.
* @category Linter
* @experimental
*/
export interface TemplateLiteral {
type: "TemplateLiteral";
range: Range;
quasis: TemplateElement[];
expressions: Expression[];
}
/**
* The static portion of a template literal.
* @category Linter
* @experimental
*/
export interface TemplateElement {
type: "TemplateElement";
range: Range;
tail: boolean;
raw: string;
cooked: string;
}
/**
* Tagged template expression.
* @category Linter
* @experimental
*/
export interface TaggedTemplateExpression {
type: "TaggedTemplateExpression";
range: Range;
tag: Expression;
typeArguments: TSTypeParameterInstantiation | undefined;
quasi: TemplateLiteral;
}
/**
* Pause or resume a generator function.
* @category Linter
* @experimental
*/
export interface YieldExpression {
type: "YieldExpression";
range: Range;
delegate: boolean;
argument: Expression | null;
}
/**
* Await a `Promise` and get its fulfilled value.
* @category Linter
* @experimental
*/
export interface AwaitExpression {
type: "AwaitExpression";
range: Range;
argument: Expression;
}
/**
* Can either be `import.meta` or `new.target`.
* @category Linter
* @experimental
*/
export interface MetaProperty {
type: "MetaProperty";
range: Range;
meta: Identifier;
property: Identifier;
}
/**
* Custom named node by the developer. Can be a variable name,
* a function name, parameter, etc.
* @category Linter
* @experimental
*/
export interface Identifier {
type: "Identifier";
range: Range;
name: string;
optional: boolean;
typeAnnotation: TSTypeAnnotation | undefined;
}
/**
* Private members inside of classes, must start with `#`.
* @category Linter
* @experimental
*/
export interface PrivateIdentifier {
type: "PrivateIdentifier";
range: Range;
name: string;
}
/**
* Assign default values in parameters.
* @category Linter
* @experimental
*/
export interface AssignmentPattern {
type: "AssignmentPattern";
range: Range;
left: ArrayPattern | ObjectPattern | Identifier;
right: Expression;
}
/**
* Destructure an array.
* @category Linter
* @experimental
*/
export interface ArrayPattern {
type: "ArrayPattern";
range: Range;
optional: boolean;
typeAnnotation: TSTypeAnnotation | undefined;
elements: Array<
| ArrayPattern
| AssignmentPattern
| Identifier
| MemberExpression
| ObjectPattern
| RestElement
| null
>;
}
/**
* Destructure an object.
* @category Linter
* @experimental
*/
export interface ObjectPattern {
type: "ObjectPattern";
range: Range;
optional: boolean;
typeAnnotation: TSTypeAnnotation | undefined;
properties: Array<Property | RestElement>;
}
/**
* The rest of function parameters.
* @category Linter
* @experimental
*/
export interface RestElement {
type: "RestElement";
range: Range;
typeAnnotation: TSTypeAnnotation | undefined;
argument:
| ArrayPattern
| AssignmentPattern
| Identifier
| MemberExpression
| ObjectPattern
| RestElement;
}
/**
* @category Linter
* @experimental
*/
export interface SpreadElement {
type: "SpreadElement";
range: Range;
argument: Expression;
}
/**
* @category Linter
* @experimental
*/
export interface Property {
type: "Property";
range: Range;
shorthand: boolean;
computed: boolean;
method: boolean;
kind: "get" | "init" | "set";
key: Expression | Identifier | NumberLiteral | StringLiteral;
value:
| AssignmentPattern
| ArrayPattern
| ObjectPattern
| Identifier
| Expression
| TSEmptyBodyFunctionExpression;
}
/**
* Represents numbers that are too high or too low to be represented
* by the `number` type.
*
* ```ts
* const a = 9007199254740991n;
* ```
* @category Linter
* @experimental
*/
export interface BigIntLiteral {
type: "Literal";
range: Range;
raw: string;
bigint: string;
value: bigint;
}
/**
* Either `true` or `false`
* @category Linter
* @experimental
*/
export interface BooleanLiteral {
type: "Literal";
range: Range;
raw: "false" | "true";
value: boolean;
}
/**
* A number literal
*
* ```ts
* 1;
* 1.2;
* ```
* @category Linter
* @experimental
*/
export interface NumberLiteral {
type: "Literal";
range: Range;
raw: string;
value: number;
}
/**
* The `null` literal
* @category Linter
* @experimental
*/
export interface NullLiteral {
type: "Literal";
range: Range;
raw: "null";
value: null;
}
/**
* A string literal
*
* ```ts
* "foo";
* 'foo "bar"';
* ```
* @category Linter
* @experimental
*/
export interface StringLiteral {
type: "Literal";
range: Range;
raw: string;
value: string;
}
/**
* A regex literal:
*
* ```ts
* /foo(bar|baz)$/g
* ```
* @category Linter
* @experimental
*/
export interface RegExpLiteral {
type: "Literal";
range: Range;
raw: string;
regex: {
flags: string;
pattern: string;
};
value: RegExp | null;
}
/**
* Union type of all Literals
* @category Linter
* @experimental
*/
export type Literal =
| BigIntLiteral
| BooleanLiteral
| NullLiteral
| NumberLiteral
| RegExpLiteral
| StringLiteral;
/**
* User named identifier inside JSX.
* @category Linter
* @experimental
*/
export interface JSXIdentifier {
type: "JSXIdentifier";
range: Range;
name: string;
}
/**
* Namespaced name in JSX
* @category Linter
* @experimental
*/
export interface JSXNamespacedName {
type: "JSXNamespacedName";
range: Range;
namespace: JSXIdentifier;
name: JSXIdentifier;
}
/**
* Empty JSX expression.
* @category Linter
* @experimental
*/
export interface JSXEmptyExpression {
type: "JSXEmptyExpression";
range: Range;
}
/**
* A JSX element.
* @category Linter
* @experimental
*/
export interface JSXElement {
type: "JSXElement";
range: Range;
openingElement: JSXOpeningElement;
closingElement: JSXClosingElement | null;
children: JSXChild[];
}
/**
* The opening tag of a JSXElement
* @category Linter
* @experimental
*/
export interface JSXOpeningElement {
type: "JSXOpeningElement";
range: Range;
selfClosing: boolean;
name:
| JSXIdentifier
| JSXMemberExpression
| JSXNamespacedName;
attributes: Array<JSXAttribute | JSXSpreadAttribute>;
typeArguments: TSTypeParameterInstantiation | undefined;
}
/**
* A JSX attribute
* @category Linter
* @experimental
*/
export interface JSXAttribute {
type: "JSXAttribute";
range: Range;
name: JSXIdentifier | JSXNamespacedName;
value:
| JSXElement
| JSXExpressionContainer
| Literal
| null;
}
/**
* Spreads an object as JSX attributes.
* @category Linter
* @experimental
*/
export interface JSXSpreadAttribute {
type: "JSXSpreadAttribute";
range: Range;
argument: Expression;
}
/**
* The closing tag of a JSXElement. Only used when the element
* is not self-closing.
* @category Linter
* @experimental
*/
export interface JSXClosingElement {
type: "JSXClosingElement";
range: Range;
name:
| JSXIdentifier
| JSXMemberExpression
| JSXNamespacedName;
}
/**
* Usually a passthrough node to pass multiple sibling elements as
* the JSX syntax requires one root element.
* @category Linter
* @experimental
*/
export interface JSXFragment {
type: "JSXFragment";
range: Range;
openingFragment: JSXOpeningFragment;
closingFragment: JSXClosingFragment;
children: JSXChild[];
}
/**
* The opening tag of a JSXFragment.
* @category Linter
* @experimental
*/
export interface JSXOpeningFragment {
type: "JSXOpeningFragment";
range: Range;
}
/**
* The closing tag of a JSXFragment.
* @category Linter
* @experimental
*/
export interface JSXClosingFragment {
type: "JSXClosingFragment";
range: Range;
}
/**
* Inserts a normal JS expression into JSX.
* @category Linter
* @experimental
*/
export interface JSXExpressionContainer {
type: "JSXExpressionContainer";
range: Range;
expression: Expression | JSXEmptyExpression;
}
/**
* Plain text in JSX.
* @category Linter
* @experimental
*/
export interface JSXText {
type: "JSXText";
range: Range;
raw: string;
value: string;
}
/**
* JSX member expression.
* @category Linter
* @experimental
*/
export interface JSXMemberExpression {
type: "JSXMemberExpression";
range: Range;
object:
| JSXIdentifier
| JSXMemberExpression
| JSXNamespacedName;
property: JSXIdentifier;
}
/**
* Union type of all possible child nodes in JSX
* @category Linter
* @experimental
*/
export type JSXChild =
| JSXElement
| JSXExpressionContainer
| JSXFragment
| JSXText;
/**
* @category Linter
* @experimental
*/
export interface TSModuleDeclaration {
type: "TSModuleDeclaration";
range: Range;
declare: boolean;
kind: "global" | "module" | "namespace";
id: Identifier | Literal | TSQualifiedName;
body: TSModuleBlock | undefined;
}
/**
* Body of a `TSModuleDeclaration`
* @category Linter
* @experimental
*/
export interface TSModuleBlock {
type: "TSModuleBlock";
range: Range;
body: Array<
| ExportAllDeclaration
| ExportDefaultDeclaration
| ExportNamedDeclaration
| ImportDeclaration
| Statement
| TSImportEqualsDeclaration
| TSNamespaceExportDeclaration
>;
}
/**
* @category Linter
* @experimental
*/
export interface TSClassImplements {
type: "TSClassImplements";
range: Range;
expression: Expression;
typeArguments: TSTypeParameterInstantiation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSAbstractMethodDefinition {
type: "TSAbstractMethodDefinition";
range: Range;
computed: boolean;
optional: boolean;
override: boolean;
static: boolean;
accessibility: Accessibility | undefined;
kind: "method";
key: Expression | Identifier | NumberLiteral | StringLiteral;
value: FunctionExpression | TSEmptyBodyFunctionExpression;
}
/**
* @category Linter
* @experimental
*/
export interface TSAbstractPropertyDefinition {
type: "TSAbstractPropertyDefinition";
range: Range;
computed: boolean;
optional: boolean;
override: boolean;
static: boolean;
definite: boolean;
declare: boolean;
readonly: boolean;
accessibility: Accessibility | undefined;
decorators: Decorator[];
key:
| Expression
| PrivateIdentifier
| Identifier
| NumberLiteral
| StringLiteral;
typeAnnotation: TSTypeAnnotation | undefined;
value: Expression | null;
}
/**
* @category Linter
* @experimental
*/
export interface TSEmptyBodyFunctionExpression {
type: "TSEmptyBodyFunctionExpression";
range: Range;
declare: boolean;
expression: boolean;
async: boolean;
generator: boolean;
id: null;
body: null;
typeParameters: TSTypeParameterDeclaration | undefined;
params: Parameter[];
returnType: TSTypeAnnotation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSParameterProperty {
type: "TSParameterProperty";
range: Range;
override: boolean;
readonly: boolean;
static: boolean;
accessibility: Accessibility | undefined;
decorators: Decorator[];
parameter:
| AssignmentPattern
| ArrayPattern
| ObjectPattern
| Identifier
| RestElement;
}
/**
* @category Linter
* @experimental
*/
export interface TSCallSignatureDeclaration {
type: "TSCallSignatureDeclaration";
range: Range;
typeParameters: TSTypeParameterDeclaration | undefined;
params: Parameter[];
returnType: TSTypeAnnotation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSPropertySignature {
type: "TSPropertySignature";
range: Range;
computed: boolean;
optional: boolean;
readonly: boolean;
static: boolean;
key:
| PrivateIdentifier
| Expression
| Identifier
| NumberLiteral
| StringLiteral;
typeAnnotation: TSTypeAnnotation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSDeclareFunction {
type: "TSDeclareFunction";
range: Range;
async: boolean;
declare: boolean;
generator: boolean;
body: undefined;
id: Identifier | null;
params: Parameter[];
returnType: TSTypeAnnotation | undefined;
typeParameters: TSTypeParameterDeclaration | undefined;
}
/**
* ```ts
* enum Foo { A, B };
* ```
* @category Linter
* @experimental
*/
export interface TSEnumDeclaration {
type: "TSEnumDeclaration";
range: Range;
declare: boolean;
const: boolean;
id: Identifier;
body: TSEnumBody;
}
/**
* The body of a `TSEnumDeclaration`
* @category Linter
* @experimental
*/
export interface TSEnumBody {
type: "TSEnumBody";
range: Range;
members: TSEnumMember[];
}
/**
* A member of a `TSEnumDeclaration`
* @category Linter
* @experimental
*/
export interface TSEnumMember {
type: "TSEnumMember";
range: Range;
id:
| Identifier
| NumberLiteral
| StringLiteral;
initializer: Expression | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeAssertion {
type: "TSTypeAssertion";
range: Range;
expression: Expression;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeParameterInstantiation {
type: "TSTypeParameterInstantiation";
range: Range;
params: TypeNode[];
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeAliasDeclaration {
type: "TSTypeAliasDeclaration";
range: Range;
declare: boolean;
id: Identifier;
typeParameters: TSTypeParameterDeclaration | undefined;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSSatisfiesExpression {
type: "TSSatisfiesExpression";
range: Range;
expression: Expression;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSAsExpression {
type: "TSAsExpression";
range: Range;
expression: Expression;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSInstantiationExpression {
type: "TSInstantiationExpression";
range: Range;
expression: Expression;
typeArguments: TSTypeParameterInstantiation;
}
/**
* @category Linter
* @experimental
*/
export interface TSNonNullExpression {
type: "TSNonNullExpression";
range: Range;
expression: Expression;
}
/**
* @category Linter
* @experimental
*/
export interface TSThisType {
type: "TSThisType";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSInterfaceDeclaration {
type: "TSInterfaceDeclaration";
range: Range;
declare: boolean;
id: Identifier;
extends: TSInterfaceHeritage[];
typeParameters: TSTypeParameterDeclaration | undefined;
body: TSInterfaceBody;
}
/**
* @category Linter
* @experimental
*/
export interface TSInterfaceBody {
type: "TSInterfaceBody";
range: Range;
body: Array<
| TSCallSignatureDeclaration
| TSConstructSignatureDeclaration
| TSIndexSignature
| TSMethodSignature
| TSPropertySignature
>;
}
/**
* @category Linter
* @experimental
*/
export interface TSConstructSignatureDeclaration {
type: "TSConstructSignatureDeclaration";
range: Range;
typeParameters: TSTypeParameterDeclaration | undefined;
params: Parameter[];
returnType: TSTypeAnnotation;
}
/**
* @category Linter
* @experimental
*/
export interface TSMethodSignature {
type: "TSMethodSignature";
range: Range;
computed: boolean;
optional: boolean;
readonly: boolean;
static: boolean;
kind: "get" | "set" | "method";
key: Expression | Identifier | NumberLiteral | StringLiteral;
returnType: TSTypeAnnotation | undefined;
params: Parameter[];
typeParameters: TSTypeParameterDeclaration | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSInterfaceHeritage {
type: "TSInterfaceHeritage";
range: Range;
expression: Expression;
typeArguments: TSTypeParameterInstantiation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSIndexSignature {
type: "TSIndexSignature";
range: Range;
readonly: boolean;
static: boolean;
parameters: Parameter[];
typeAnnotation: TSTypeAnnotation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSUnionType {
type: "TSUnionType";
range: Range;
types: TypeNode[];
}
/**
* @category Linter
* @experimental
*/
export interface TSIntersectionType {
type: "TSIntersectionType";
range: Range;
types: TypeNode[];
}
/**
* @category Linter
* @experimental
*/
export interface TSInferType {
type: "TSInferType";
range: Range;
typeParameter: TSTypeParameter;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeOperator {
type: "TSTypeOperator";
range: Range;
operator: "keyof" | "readonly" | "unique";
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSIndexedAccessType {
type: "TSIndexedAccessType";
range: Range;
indexType: TypeNode;
objectType: TypeNode;
}
/**
* ```ts
* const a: any = null;
* ```
* @category Linter
* @experimental
*/
export interface TSAnyKeyword {
type: "TSAnyKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSUnknownKeyword {
type: "TSUnknownKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSNumberKeyword {
type: "TSNumberKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSObjectKeyword {
type: "TSObjectKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSBooleanKeyword {
type: "TSBooleanKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSBigIntKeyword {
type: "TSBigIntKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSStringKeyword {
type: "TSStringKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSSymbolKeyword {
type: "TSSymbolKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSVoidKeyword {
type: "TSVoidKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSUndefinedKeyword {
type: "TSUndefinedKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSNullKeyword {
type: "TSNullKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSNeverKeyword {
type: "TSNeverKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSIntrinsicKeyword {
type: "TSIntrinsicKeyword";
range: Range;
}
/**
* @category Linter
* @experimental
*/
export interface TSRestType {
type: "TSRestType";
range: Range;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSConditionalType {
type: "TSConditionalType";
range: Range;
checkType: TypeNode;
extendsType: TypeNode;
trueType: TypeNode;
falseType: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSMappedType {
type: "TSMappedType";
range: Range;
readonly: boolean;
optional: boolean;
nameType: TypeNode | null;
typeAnnotation: TypeNode | undefined;
constraint: TypeNode;
key: Identifier;
}
/**
* @category Linter
* @experimental
*/
export interface TSLiteralType {
type: "TSLiteralType";
range: Range;
literal: Literal | TemplateLiteral | UnaryExpression | UpdateExpression;
}
/**
* @category Linter
* @experimental
*/
export interface TSTemplateLiteralType {
type: "TSTemplateLiteralType";
range: Range;
quasis: TemplateElement[];
types: TypeNode[];
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeLiteral {
type: "TSTypeLiteral";
range: Range;
members: Array<
| TSCallSignatureDeclaration
| TSConstructSignatureDeclaration
| TSIndexSignature
| TSMethodSignature
| TSPropertySignature
>;
}
/**
* @category Linter
* @experimental
*/
export interface TSOptionalType {
type: "TSOptionalType";
range: Range;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeAnnotation {
type: "TSTypeAnnotation";
range: Range;
typeAnnotation: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSArrayType {
type: "TSArrayType";
range: Range;
elementType: TypeNode;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeQuery {
type: "TSTypeQuery";
range: Range;
exprName: Identifier | ThisExpression | TSQualifiedName | TSImportType;
typeArguments: TSTypeParameterInstantiation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeReference {
type: "TSTypeReference";
range: Range;
typeName: Identifier | ThisExpression | TSQualifiedName;
typeArguments: TSTypeParameterInstantiation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypePredicate {
type: "TSTypePredicate";
range: Range;
asserts: boolean;
parameterName: Identifier | TSThisType;
typeAnnotation: TSTypeAnnotation | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSTupleType {
type: "TSTupleType";
range: Range;
elementTypes: TypeNode[];
}
/**
* @category Linter
* @experimental
*/
export interface TSNamedTupleMember {
type: "TSNamedTupleMember";
range: Range;
label: Identifier;
elementType: TypeNode;
optional: boolean;
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeParameterDeclaration {
type: "TSTypeParameterDeclaration";
range: Range;
params: TSTypeParameter[];
}
/**
* @category Linter
* @experimental
*/
export interface TSTypeParameter {
type: "TSTypeParameter";
range: Range;
in: boolean;
out: boolean;
const: boolean;
name: Identifier;
constraint: TypeNode | null;
default: TypeNode | null;
}
/**
* @category Linter
* @experimental
*/
export interface TSImportType {
type: "TSImportType";
range: Range;
argument: TypeNode;
qualifier: Identifier | ThisExpression | TSQualifiedName | null;
typeArguments: TSTypeParameterInstantiation | null;
}
/**
* @category Linter
* @experimental
*/
export interface TSExportAssignment {
type: "TSExportAssignment";
range: Range;
expression: Expression;
}
/**
* @category Linter
* @experimental
*/
export interface TSFunctionType {
type: "TSFunctionType";
range: Range;
params: Parameter[];
returnType: TSTypeAnnotation | undefined;
typeParameters: TSTypeParameterDeclaration | undefined;
}
/**
* @category Linter
* @experimental
*/
export interface TSQualifiedName {
type: "TSQualifiedName";
range: Range;
left: Identifier | ThisExpression | TSQualifiedName;
right: Identifier;
}
/**
* Union type of all possible statement nodes
* @category Linter
* @experimental
*/
export type Statement =
| BlockStatement
| BreakStatement
| ClassDeclaration
| ContinueStatement
| DebuggerStatement
| DoWhileStatement
| ExportAllDeclaration
| ExportDefaultDeclaration
| ExportNamedDeclaration
| ExpressionStatement
| ForInStatement
| ForOfStatement
| ForStatement
| FunctionDeclaration
| IfStatement
| ImportDeclaration
| LabeledStatement
| ReturnStatement
| SwitchStatement
| ThrowStatement
| TryStatement
| TSDeclareFunction
| TSEnumDeclaration
| TSExportAssignment
| TSImportEqualsDeclaration
| TSInterfaceDeclaration
| TSModuleDeclaration
| TSNamespaceExportDeclaration
| TSTypeAliasDeclaration
| VariableDeclaration
| WhileStatement
| WithStatement;
/**
* Union type of all possible expression nodes
* @category Linter
* @experimental
*/
export type Expression =
| ArrayExpression
| ArrayPattern
| ArrowFunctionExpression
| AssignmentExpression
| AwaitExpression
| BinaryExpression
| CallExpression
| ChainExpression
| ClassExpression
| ConditionalExpression
| FunctionExpression
| Identifier
| ImportExpression
| JSXElement
| JSXFragment
| Literal
| TemplateLiteral
| LogicalExpression
| MemberExpression
| MetaProperty
| NewExpression
| ObjectExpression
| ObjectPattern
| SequenceExpression
| Super
| TaggedTemplateExpression
| TemplateLiteral
| ThisExpression
| TSAsExpression
| TSInstantiationExpression
| TSNonNullExpression
| TSSatisfiesExpression
| TSTypeAssertion
| UnaryExpression
| UpdateExpression
| YieldExpression;
/**
* Union type of all possible type nodes in TypeScript
* @category Linter
* @experimental
*/
export type TypeNode =
| TSAnyKeyword
| TSArrayType
| TSBigIntKeyword
| TSBooleanKeyword
| TSConditionalType
| TSFunctionType
| TSImportType
| TSIndexedAccessType
| TSInferType
| TSIntersectionType
| TSIntrinsicKeyword
| TSLiteralType
| TSMappedType
| TSNamedTupleMember
| TSNeverKeyword
| TSNullKeyword
| TSNumberKeyword
| TSObjectKeyword
| TSOptionalType
| TSQualifiedName
| TSRestType
| TSStringKeyword
| TSSymbolKeyword
| TSTemplateLiteralType
| TSThisType
| TSTupleType
| TSTypeLiteral
| TSTypeOperator
| TSTypePredicate
| TSTypeQuery
| TSTypeReference
| TSUndefinedKeyword
| TSUnionType
| TSUnknownKeyword
| TSVoidKeyword;
/**
* Union type of all possible AST nodes
* @category Linter
* @experimental
*/
export type Node =
| Expression
| Statement
| TypeNode
| ImportSpecifier
| ImportDefaultSpecifier
| ImportNamespaceSpecifier
| ImportAttribute
| TSExternalModuleReference
| ExportSpecifier
| VariableDeclarator
| Decorator
| ClassBody
| StaticBlock
| PropertyDefinition
| MethodDefinition
| SwitchCase
| CatchClause
| TemplateElement
| PrivateIdentifier
| AssignmentPattern
| RestElement
| SpreadElement
| Property
| JSXIdentifier
| JSXNamespacedName
| JSXEmptyExpression
| JSXOpeningElement
| JSXAttribute
| JSXSpreadAttribute
| JSXClosingElement
| JSXOpeningFragment
| JSXClosingFragment
| JSXExpressionContainer
| JSXText
| JSXMemberExpression
| TSModuleBlock
| TSClassImplements
| TSAbstractMethodDefinition
| TSAbstractPropertyDefinition
| TSEmptyBodyFunctionExpression
| TSCallSignatureDeclaration
| TSPropertySignature
| TSEnumBody
| TSEnumMember
| TSTypeParameterInstantiation
| TSInterfaceBody
| TSConstructSignatureDeclaration
| TSMethodSignature
| TSInterfaceHeritage
| TSIndexSignature
| TSTypeAnnotation
| TSTypeParameterDeclaration
| TSTypeParameter;
}
export {}; // only export exports
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @category Workers
* @experimental
*/
interface WorkerOptions {
/** **UNSTABLE**: New API, yet to be vetted.
*
* Configure permissions options to change the level of access the worker will
* have. By default it will have no permissions. Note that the permissions
* of a worker can't be extended beyond its parent's permissions reach.
*
* - `"inherit"` will take the permissions of the thread the worker is created
* in.
* - `"none"` will use the default behavior and have no permission
* - A list of routes can be provided that are relative to the file the worker
* is created in to limit the access of the worker (read/write permissions
* only)
*
* Example:
*
* ```ts
* // mod.ts
* const worker = new Worker(
* new URL("deno_worker.ts", import.meta.url).href, {
* type: "module",
* deno: {
* permissions: {
* read: true,
* },
* },
* }
* );
* ```
*/
deno?: {
/** Set to `"none"` to disable all the permissions in the worker. */
permissions?: Deno.PermissionOptions;
};
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @category WebSockets
* @experimental
*/
interface WebSocketStreamOptions {
protocols?: string[];
signal?: AbortSignal;
headers?: HeadersInit;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @category WebSockets
* @experimental
*/
interface WebSocketConnection {
readable: ReadableStream<string | Uint8Array<ArrayBuffer>>;
writable: WritableStream<string | Uint8Array<ArrayBufferLike>>;
extensions: string;
protocol: string;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @category WebSockets
* @experimental
*/
interface WebSocketCloseInfo {
code?: number;
reason?: string;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @tags allow-net
* @category WebSockets
* @experimental
*/
interface WebSocketStream {
url: string;
opened: Promise<WebSocketConnection>;
closed: Promise<WebSocketCloseInfo>;
close(closeInfo?: WebSocketCloseInfo): void;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @tags allow-net
* @category WebSockets
* @experimental
*/
declare var WebSocketStream: {
readonly prototype: WebSocketStream;
new (url: string, options?: WebSocketStreamOptions): WebSocketStream;
};
/** **UNSTABLE**: New API, yet to be vetted.
*
* @tags allow-net
* @category WebSockets
* @experimental
*/
interface WebSocketError extends DOMException {
readonly closeCode: number;
readonly reason: string;
}
/** **UNSTABLE**: New API, yet to be vetted.
*
* @tags allow-net
* @category WebSockets
* @experimental
*/
declare var WebSocketError: {
readonly prototype: WebSocketError;
new (message?: string, init?: WebSocketCloseInfo): WebSocketError;
};
// Adapted from `tc39/proposal-temporal`: https://github.com/tc39/proposal-temporal/blob/main/polyfill/index.d.ts
/**
* [Specification](https://tc39.es/proposal-temporal/docs/index.html)
*
* @category Temporal
* @experimental
*/
declare namespace Temporal {
/**
* @category Temporal
* @experimental
*/
export type ComparisonResult = -1 | 0 | 1;
/**
* @category Temporal
* @experimental
*/
export type RoundingMode =
| "ceil"
| "floor"
| "expand"
| "trunc"
| "halfCeil"
| "halfFloor"
| "halfExpand"
| "halfTrunc"
| "halfEven";
/**
* Options for assigning fields using `with()` or entire objects with
* `from()`.
*
* @category Temporal
* @experimental
*/
export type AssignmentOptions = {
/**
* How to deal with out-of-range values
*
* - In `'constrain'` mode, out-of-range values are clamped to the nearest
* in-range value.
* - In `'reject'` mode, out-of-range values will cause the function to
* throw a RangeError.
*
* The default is `'constrain'`.
*/
overflow?: "constrain" | "reject";
};
/**
* Options for assigning fields using `Duration.prototype.with()` or entire
* objects with `Duration.from()`, and for arithmetic with
* `Duration.prototype.add()` and `Duration.prototype.subtract()`.
*
* @category Temporal
* @experimental
*/
export type DurationOptions = {
/**
* How to deal with out-of-range values
*
* - In `'constrain'` mode, out-of-range values are clamped to the nearest
* in-range value.
* - In `'balance'` mode, out-of-range values are resolved by balancing them
* with the next highest unit.
*
* The default is `'constrain'`.
*/
overflow?: "constrain" | "balance";
};
/**
* Options for conversions of `Temporal.PlainDateTime` to `Temporal.Instant`
*
* @category Temporal
* @experimental
*/
export type ToInstantOptions = {
/**
* Controls handling of invalid or ambiguous times caused by time zone
* offset changes like Daylight Saving time (DST) transitions.
*
* This option is only relevant if a `DateTime` value does not exist in the
* destination time zone (e.g. near "Spring Forward" DST transitions), or
* exists more than once (e.g. near "Fall Back" DST transitions).
*
* In case of ambiguous or nonexistent times, this option controls what
* exact time to return:
* - `'compatible'`: Equivalent to `'earlier'` for backward transitions like
* the start of DST in the Spring, and `'later'` for forward transitions
* like the end of DST in the Fall. This matches the behavior of legacy
* `Date`, of libraries like moment.js, Luxon, or date-fns, and of
* cross-platform standards like [RFC 5545
* (iCalendar)](https://tools.ietf.org/html/rfc5545).
* - `'earlier'`: The earlier time of two possible times
* - `'later'`: The later of two possible times
* - `'reject'`: Throw a RangeError instead
*
* The default is `'compatible'`.
*/
disambiguation?: "compatible" | "earlier" | "later" | "reject";
};
/**
* @category Temporal
* @experimental
*/
export type OffsetDisambiguationOptions = {
/**
* Time zone definitions can change. If an application stores data about
* events in the future, then stored data about future events may become
* ambiguous, for example if a country permanently abolishes DST. The
* `offset` option controls this unusual case.
*
* - `'use'` always uses the offset (if it's provided) to calculate the
* instant. This ensures that the result will match the instant that was
* originally stored, even if local clock time is different.
* - `'prefer'` uses the offset if it's valid for the date/time in this time
* zone, but if it's not valid then the time zone will be used as a
* fallback to calculate the instant.
* - `'ignore'` will disregard any provided offset. Instead, the time zone
* and date/time value are used to calculate the instant. This will keep
* local clock time unchanged but may result in a different real-world
* instant.
* - `'reject'` acts like `'prefer'`, except it will throw a RangeError if
* the offset is not valid for the given time zone identifier and
* date/time value.
*
* If the ISO string ends in 'Z' then this option is ignored because there
* is no possibility of ambiguity.
*
* If a time zone offset is not present in the input, then this option is
* ignored because the time zone will always be used to calculate the
* offset.
*
* If the offset is not used, and if the date/time and time zone don't
* uniquely identify a single instant, then the `disambiguation` option will
* be used to choose the correct instant. However, if the offset is used
* then the `disambiguation` option will be ignored.
*/
offset?: "use" | "prefer" | "ignore" | "reject";
};
/**
* @category Temporal
* @experimental
*/
export type ZonedDateTimeAssignmentOptions = Partial<
AssignmentOptions & ToInstantOptions & OffsetDisambiguationOptions
>;
/**
* Options for arithmetic operations like `add()` and `subtract()`
*
* @category Temporal
* @experimental
*/
export type ArithmeticOptions = {
/**
* Controls handling of out-of-range arithmetic results.
*
* If a result is out of range, then `'constrain'` will clamp the result to
* the allowed range, while `'reject'` will throw a RangeError.
*
* The default is `'constrain'`.
*/
overflow?: "constrain" | "reject";
};
/**
* @category Temporal
* @experimental
*/
export type DateUnit = "year" | "month" | "week" | "day";
/**
* @category Temporal
* @experimental
*/
export type TimeUnit =
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond";
/**
* @category Temporal
* @experimental
*/
export type DateTimeUnit = DateUnit | TimeUnit;
/**
* When the name of a unit is provided to a Temporal API as a string, it is
* usually singular, e.g. 'day' or 'hour'. But plural unit names like 'days'
* or 'hours' are also accepted.
*
* @category Temporal
* @experimental
*/
export type PluralUnit<T extends DateTimeUnit> = {
year: "years";
month: "months";
week: "weeks";
day: "days";
hour: "hours";
minute: "minutes";
second: "seconds";
millisecond: "milliseconds";
microsecond: "microseconds";
nanosecond: "nanoseconds";
}[T];
/**
* @category Temporal
* @experimental
*/
export type LargestUnit<T extends DateTimeUnit> = "auto" | T | PluralUnit<T>;
/**
* @category Temporal
* @experimental
*/
export type SmallestUnit<T extends DateTimeUnit> = T | PluralUnit<T>;
/**
* @category Temporal
* @experimental
*/
export type TotalUnit<T extends DateTimeUnit> = T | PluralUnit<T>;
/**
* Options for outputting precision in toString() on types with seconds
*
* @category Temporal
* @experimental
*/
export type ToStringPrecisionOptions = {
fractionalSecondDigits?: "auto" | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9;
smallestUnit?: SmallestUnit<
"minute" | "second" | "millisecond" | "microsecond" | "nanosecond"
>;
/**
* Controls how rounding is performed:
* - `halfExpand`: Round to the nearest of the values allowed by
* `roundingIncrement` and `smallestUnit`. When there is a tie, round up.
* This mode is the default.
* - `ceil`: Always round up, towards the end of time.
* - `trunc`: Always round down, towards the beginning of time.
* - `floor`: Also round down, towards the beginning of time. This mode acts
* the same as `trunc`, but it's included for consistency with
* `Temporal.Duration.round()` where negative values are allowed and
* `trunc` rounds towards zero, unlike `floor` which rounds towards
* negative infinity which is usually unexpected. For this reason, `trunc`
* is recommended for most use cases.
*/
roundingMode?: RoundingMode;
};
/**
* @category Temporal
* @experimental
*/
export type ShowCalendarOption = {
calendarName?: "auto" | "always" | "never" | "critical";
};
/**
* @category Temporal
* @experimental
*/
export type CalendarTypeToStringOptions = Partial<
ToStringPrecisionOptions & ShowCalendarOption
>;
/**
* @category Temporal
* @experimental
*/
export type ZonedDateTimeToStringOptions = Partial<
CalendarTypeToStringOptions & {
timeZoneName?: "auto" | "never" | "critical";
offset?: "auto" | "never";
}
>;
/**
* @category Temporal
* @experimental
*/
export type InstantToStringOptions = Partial<
ToStringPrecisionOptions & {
timeZone: TimeZoneLike;
}
>;
/**
* Options to control the result of `until()` and `since()` methods in
* `Temporal` types.
*
* @category Temporal
* @experimental
*/
export interface DifferenceOptions<T extends DateTimeUnit> {
/**
* The unit to round to. For example, to round to the nearest minute, use
* `smallestUnit: 'minute'`. This property is optional for `until()` and
* `since()`, because those methods default behavior is not to round.
* However, the same property is required for `round()`.
*/
smallestUnit?: SmallestUnit<T>;
/**
* The largest unit to allow in the resulting `Temporal.Duration` object.
*
* Larger units will be "balanced" into smaller units. For example, if
* `largestUnit` is `'minute'` then a two-hour duration will be output as a
* 120-minute duration.
*
* Valid values may include `'year'`, `'month'`, `'week'`, `'day'`,
* `'hour'`, `'minute'`, `'second'`, `'millisecond'`, `'microsecond'`,
* `'nanosecond'` and `'auto'`, although some types may throw an exception
* if a value is used that would produce an invalid result. For example,
* `hours` is not accepted by `Temporal.PlainDate.prototype.since()`.
*
* The default is always `'auto'`, though the meaning of this depends on the
* type being used.
*/
largestUnit?: LargestUnit<T>;
/**
* Allows rounding to an integer number of units. For example, to round to
* increments of a half hour, use `{ smallestUnit: 'minute',
* roundingIncrement: 30 }`.
*/
roundingIncrement?: number;
/**
* Controls how rounding is performed:
* - `halfExpand`: Round to the nearest of the values allowed by
* `roundingIncrement` and `smallestUnit`. When there is a tie, round away
* from zero like `ceil` for positive durations and like `floor` for
* negative durations.
* - `ceil`: Always round up, towards the end of time.
* - `trunc`: Always round down, towards the beginning of time. This mode is
* the default.
* - `floor`: Also round down, towards the beginning of time. This mode acts
* the same as `trunc`, but it's included for consistency with
* `Temporal.Duration.round()` where negative values are allowed and
* `trunc` rounds towards zero, unlike `floor` which rounds towards
* negative infinity which is usually unexpected. For this reason, `trunc`
* is recommended for most use cases.
*/
roundingMode?: RoundingMode;
}
/**
* `round` methods take one required parameter. If a string is provided, the
* resulting `Temporal.Duration` object will be rounded to that unit. If an
* object is provided, its `smallestUnit` property is required while other
* properties are optional. A string is treated the same as an object whose
* `smallestUnit` property value is that string.
*
* @category Temporal
* @experimental
*/
export type RoundTo<T extends DateTimeUnit> =
| SmallestUnit<T>
| {
/**
* The unit to round to. For example, to round to the nearest minute,
* use `smallestUnit: 'minute'`. This option is required. Note that the
* same-named property is optional when passed to `until` or `since`
* methods, because those methods do no rounding by default.
*/
smallestUnit: SmallestUnit<T>;
/**
* Allows rounding to an integer number of units. For example, to round to
* increments of a half hour, use `{ smallestUnit: 'minute',
* roundingIncrement: 30 }`.
*/
roundingIncrement?: number;
/**
* Controls how rounding is performed:
* - `halfExpand`: Round to the nearest of the values allowed by
* `roundingIncrement` and `smallestUnit`. When there is a tie, round up.
* This mode is the default.
* - `ceil`: Always round up, towards the end of time.
* - `trunc`: Always round down, towards the beginning of time.
* - `floor`: Also round down, towards the beginning of time. This mode acts
* the same as `trunc`, but it's included for consistency with
* `Temporal.Duration.round()` where negative values are allowed and
* `trunc` rounds towards zero, unlike `floor` which rounds towards
* negative infinity which is usually unexpected. For this reason, `trunc`
* is recommended for most use cases.
*/
roundingMode?: RoundingMode;
};
/**
* The `round` method of the `Temporal.Duration` accepts one required
* parameter. If a string is provided, the resulting `Temporal.Duration`
* object will be rounded to that unit. If an object is provided, the
* `smallestUnit` and/or `largestUnit` property is required, while other
* properties are optional. A string parameter is treated the same as an
* object whose `smallestUnit` property value is that string.
*
* @category Temporal
* @experimental
*/
export type DurationRoundTo =
| SmallestUnit<DateTimeUnit>
| (
& (
| {
/**
* The unit to round to. For example, to round to the nearest
* minute, use `smallestUnit: 'minute'`. This property is normally
* required, but is optional if `largestUnit` is provided and not
* undefined.
*/
smallestUnit: SmallestUnit<DateTimeUnit>;
/**
* The largest unit to allow in the resulting `Temporal.Duration`
* object.
*
* Larger units will be "balanced" into smaller units. For example,
* if `largestUnit` is `'minute'` then a two-hour duration will be
* output as a 120-minute duration.
*
* Valid values include `'year'`, `'month'`, `'week'`, `'day'`,
* `'hour'`, `'minute'`, `'second'`, `'millisecond'`,
* `'microsecond'`, `'nanosecond'` and `'auto'`.
*
* The default is `'auto'`, which means "the largest nonzero unit in
* the input duration". This default prevents expanding durations to
* larger units unless the caller opts into this behavior.
*
* If `smallestUnit` is larger, then `smallestUnit` will be used as
* `largestUnit`, superseding a caller-supplied or default value.
*/
largestUnit?: LargestUnit<DateTimeUnit>;
}
| {
/**
* The unit to round to. For example, to round to the nearest
* minute, use `smallestUnit: 'minute'`. This property is normally
* required, but is optional if `largestUnit` is provided and not
* undefined.
*/
smallestUnit?: SmallestUnit<DateTimeUnit>;
/**
* The largest unit to allow in the resulting `Temporal.Duration`
* object.
*
* Larger units will be "balanced" into smaller units. For example,
* if `largestUnit` is `'minute'` then a two-hour duration will be
* output as a 120-minute duration.
*
* Valid values include `'year'`, `'month'`, `'week'`, `'day'`,
* `'hour'`, `'minute'`, `'second'`, `'millisecond'`,
* `'microsecond'`, `'nanosecond'` and `'auto'`.
*
* The default is `'auto'`, which means "the largest nonzero unit in
* the input duration". This default prevents expanding durations to
* larger units unless the caller opts into this behavior.
*
* If `smallestUnit` is larger, then `smallestUnit` will be used as
* `largestUnit`, superseding a caller-supplied or default value.
*/
largestUnit: LargestUnit<DateTimeUnit>;
}
)
& {
/**
* Allows rounding to an integer number of units. For example, to round
* to increments of a half hour, use `{ smallestUnit: 'minute',
* roundingIncrement: 30 }`.
*/
roundingIncrement?: number;
/**
* Controls how rounding is performed:
* - `halfExpand`: Round to the nearest of the values allowed by
* `roundingIncrement` and `smallestUnit`. When there is a tie, round
* away from zero like `ceil` for positive durations and like `floor`
* for negative durations. This mode is the default.
* - `ceil`: Always round towards positive infinity. For negative
* durations this option will decrease the absolute value of the
* duration which may be unexpected. To round away from zero, use
* `ceil` for positive durations and `floor` for negative durations.
* - `trunc`: Always round down towards zero.
* - `floor`: Always round towards negative infinity. This mode acts the
* same as `trunc` for positive durations but for negative durations
* it will increase the absolute value of the result which may be
* unexpected. For this reason, `trunc` is recommended for most "round
* down" use cases.
*/
roundingMode?: RoundingMode;
/**
* The starting point to use for rounding and conversions when
* variable-length units (years, months, weeks depending on the
* calendar) are involved. This option is required if any of the
* following are true:
* - `unit` is `'week'` or larger units
* - `this` has a nonzero value for `weeks` or larger units
*
* This value must be either a `Temporal.PlainDateTime`, a
* `Temporal.ZonedDateTime`, or a string or object value that can be
* passed to `from()` of those types. Examples:
* - `'2020-01-01T00:00-08:00[America/Los_Angeles]'`
* - `'2020-01-01'`
* - `Temporal.PlainDate.from('2020-01-01')`
*
* `Temporal.ZonedDateTime` will be tried first because it's more
* specific, with `Temporal.PlainDateTime` as a fallback.
*
* If the value resolves to a `Temporal.ZonedDateTime`, then operation
* will adjust for DST and other time zone transitions. Otherwise
* (including if this option is omitted), then the operation will ignore
* time zone transitions and all days will be assumed to be 24 hours
* long.
*/
relativeTo?:
| Temporal.PlainDateTime
| Temporal.ZonedDateTime
| PlainDateTimeLike
| ZonedDateTimeLike
| string;
}
);
/**
* Options to control behavior of `Duration.prototype.total()`
*
* @category Temporal
* @experimental
*/
export type DurationTotalOf =
| TotalUnit<DateTimeUnit>
| {
/**
* The unit to convert the duration to. This option is required.
*/
unit: TotalUnit<DateTimeUnit>;
/**
* The starting point to use when variable-length units (years, months,
* weeks depending on the calendar) are involved. This option is required if
* any of the following are true:
* - `unit` is `'week'` or larger units
* - `this` has a nonzero value for `weeks` or larger units
*
* This value must be either a `Temporal.PlainDateTime`, a
* `Temporal.ZonedDateTime`, or a string or object value that can be passed
* to `from()` of those types. Examples:
* - `'2020-01-01T00:00-08:00[America/Los_Angeles]'`
* - `'2020-01-01'`
* - `Temporal.PlainDate.from('2020-01-01')`
*
* `Temporal.ZonedDateTime` will be tried first because it's more
* specific, with `Temporal.PlainDateTime` as a fallback.
*
* If the value resolves to a `Temporal.ZonedDateTime`, then operation will
* adjust for DST and other time zone transitions. Otherwise (including if
* this option is omitted), then the operation will ignore time zone
* transitions and all days will be assumed to be 24 hours long.
*/
relativeTo?:
| Temporal.ZonedDateTime
| Temporal.PlainDateTime
| ZonedDateTimeLike
| PlainDateTimeLike
| string;
};
/**
* Options to control behavior of `Duration.compare()`
*
* @category Temporal
* @experimental
*/
export interface DurationArithmeticOptions {
/**
* The starting point to use when variable-length units (years, months,
* weeks depending on the calendar) are involved. This option is required if
* either of the durations has a nonzero value for `weeks` or larger units.
*
* This value must be either a `Temporal.PlainDateTime`, a
* `Temporal.ZonedDateTime`, or a string or object value that can be passed
* to `from()` of those types. Examples:
* - `'2020-01-01T00:00-08:00[America/Los_Angeles]'`
* - `'2020-01-01'`
* - `Temporal.PlainDate.from('2020-01-01')`
*
* `Temporal.ZonedDateTime` will be tried first because it's more
* specific, with `Temporal.PlainDateTime` as a fallback.
*
* If the value resolves to a `Temporal.ZonedDateTime`, then operation will
* adjust for DST and other time zone transitions. Otherwise (including if
* this option is omitted), then the operation will ignore time zone
* transitions and all days will be assumed to be 24 hours long.
*/
relativeTo?:
| Temporal.ZonedDateTime
| Temporal.PlainDateTime
| ZonedDateTimeLike
| PlainDateTimeLike
| string;
}
/**
* Options to control behaviour of `ZonedDateTime.prototype.getTimeZoneTransition()`
*
* @category Temporal
* @experimental
*/
export type TransitionDirection = "next" | "previous" | {
direction: "next" | "previous";
};
/**
* @category Temporal
* @experimental
*/
export type DurationLike = {
years?: number;
months?: number;
weeks?: number;
days?: number;
hours?: number;
minutes?: number;
seconds?: number;
milliseconds?: number;
microseconds?: number;
nanoseconds?: number;
};
/**
* A `Temporal.Duration` represents an immutable duration of time which can be
* used in date/time arithmetic.
*
* See https://tc39.es/proposal-temporal/docs/duration.html for more details.
*
* @category Temporal
* @experimental
*/
export class Duration {
static from(
item: Temporal.Duration | DurationLike | string,
): Temporal.Duration;
static compare(
one: Temporal.Duration | DurationLike | string,
two: Temporal.Duration | DurationLike | string,
options?: DurationArithmeticOptions,
): ComparisonResult;
constructor(
years?: number,
months?: number,
weeks?: number,
days?: number,
hours?: number,
minutes?: number,
seconds?: number,
milliseconds?: number,
microseconds?: number,
nanoseconds?: number,
);
readonly sign: -1 | 0 | 1;
readonly blank: boolean;
readonly years: number;
readonly months: number;
readonly weeks: number;
readonly days: number;
readonly hours: number;
readonly minutes: number;
readonly seconds: number;
readonly milliseconds: number;
readonly microseconds: number;
readonly nanoseconds: number;
negated(): Temporal.Duration;
abs(): Temporal.Duration;
with(durationLike: DurationLike): Temporal.Duration;
add(
other: Temporal.Duration | DurationLike | string,
options?: DurationArithmeticOptions,
): Temporal.Duration;
subtract(
other: Temporal.Duration | DurationLike | string,
options?: DurationArithmeticOptions,
): Temporal.Duration;
round(roundTo: DurationRoundTo): Temporal.Duration;
total(totalOf: DurationTotalOf): number;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: ToStringPrecisionOptions): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.Duration";
}
/**
* A `Temporal.Instant` is an exact point in time, with a precision in
* nanoseconds. No time zone or calendar information is present. Therefore,
* `Temporal.Instant` has no concept of days, months, or even hours.
*
* For convenience of interoperability, it internally uses nanoseconds since
* the {@link https://en.wikipedia.org/wiki/Unix_time|Unix epoch} (midnight
* UTC on January 1, 1970). However, a `Temporal.Instant` can be created from
* any of several expressions that refer to a single point in time, including
* an {@link https://en.wikipedia.org/wiki/ISO_8601|ISO 8601 string} with a
* time zone offset such as '2020-01-23T17:04:36.491865121-08:00'.
*
* See https://tc39.es/proposal-temporal/docs/instant.html for more details.
*
* @category Temporal
* @experimental
*/
export class Instant {
static fromEpochMilliseconds(epochMilliseconds: number): Temporal.Instant;
static fromEpochNanoseconds(epochNanoseconds: bigint): Temporal.Instant;
static from(item: Temporal.Instant | string): Temporal.Instant;
static compare(
one: Temporal.Instant | string,
two: Temporal.Instant | string,
): ComparisonResult;
constructor(epochNanoseconds: bigint);
readonly epochMilliseconds: number;
readonly epochNanoseconds: bigint;
equals(other: Temporal.Instant | string): boolean;
add(
durationLike:
| Omit<
Temporal.Duration | DurationLike,
"years" | "months" | "weeks" | "days"
>
| string,
): Temporal.Instant;
subtract(
durationLike:
| Omit<
Temporal.Duration | DurationLike,
"years" | "months" | "weeks" | "days"
>
| string,
): Temporal.Instant;
until(
other: Temporal.Instant | string,
options?: DifferenceOptions<
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
since(
other: Temporal.Instant | string,
options?: DifferenceOptions<
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
round(
roundTo: RoundTo<
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Instant;
toZonedDateTimeISO(tzLike: TimeZoneLike): Temporal.ZonedDateTime;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: InstantToStringOptions): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.Instant";
}
/**
* Any of these types can be passed to Temporal methods instead of a calendar ID.
*
* @category Temporal
* @experimental
*/
export type CalendarLike =
| string
| ZonedDateTime
| PlainDateTime
| PlainDate
| PlainYearMonth
| PlainMonthDay;
/**
* @category Temporal
* @experimental
*/
export type PlainDateLike = {
era?: string | undefined;
eraYear?: number | undefined;
year?: number;
month?: number;
monthCode?: string;
day?: number;
calendar?: CalendarLike;
};
/**
* A `Temporal.PlainDate` represents a calendar date. "Calendar date" refers to the
* concept of a date as expressed in everyday usage, independent of any time
* zone. For example, it could be used to represent an event on a calendar
* which happens during the whole day no matter which time zone it's happening
* in.
*
* See https://tc39.es/proposal-temporal/docs/date.html for more details.
*
* @category Temporal
* @experimental
*/
export class PlainDate {
static from(
item: Temporal.PlainDate | PlainDateLike | string,
options?: AssignmentOptions,
): Temporal.PlainDate;
static compare(
one: Temporal.PlainDate | PlainDateLike | string,
two: Temporal.PlainDate | PlainDateLike | string,
): ComparisonResult;
constructor(
isoYear: number,
isoMonth: number,
isoDay: number,
calendar?: string,
);
readonly era: string | undefined;
readonly eraYear: number | undefined;
readonly year: number;
readonly month: number;
readonly monthCode: string;
readonly day: number;
readonly calendarId: string;
readonly dayOfWeek: number;
readonly dayOfYear: number;
readonly weekOfYear: number | undefined;
readonly yearOfWeek: number | undefined;
readonly daysInWeek: number;
readonly daysInYear: number;
readonly daysInMonth: number;
readonly monthsInYear: number;
readonly inLeapYear: boolean;
equals(other: Temporal.PlainDate | PlainDateLike | string): boolean;
with(
dateLike: PlainDateLike,
options?: AssignmentOptions,
): Temporal.PlainDate;
withCalendar(calendar: CalendarLike): Temporal.PlainDate;
add(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainDate;
subtract(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainDate;
until(
other: Temporal.PlainDate | PlainDateLike | string,
options?: DifferenceOptions<"year" | "month" | "week" | "day">,
): Temporal.Duration;
since(
other: Temporal.PlainDate | PlainDateLike | string,
options?: DifferenceOptions<"year" | "month" | "week" | "day">,
): Temporal.Duration;
toPlainDateTime(
temporalTime?: Temporal.PlainTime | PlainTimeLike | string,
): Temporal.PlainDateTime;
toZonedDateTime(
timeZoneAndTime:
| string
| {
timeZone: TimeZoneLike;
plainTime?: Temporal.PlainTime | PlainTimeLike | string;
},
): Temporal.ZonedDateTime;
toPlainYearMonth(): Temporal.PlainYearMonth;
toPlainMonthDay(): Temporal.PlainMonthDay;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: ShowCalendarOption): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.PlainDate";
}
/**
* @category Temporal
* @experimental
*/
export type PlainDateTimeLike = {
era?: string | undefined;
eraYear?: number | undefined;
year?: number;
month?: number;
monthCode?: string;
day?: number;
hour?: number;
minute?: number;
second?: number;
millisecond?: number;
microsecond?: number;
nanosecond?: number;
calendar?: CalendarLike;
};
/**
* A `Temporal.PlainDateTime` represents a calendar date and wall-clock time, with
* a precision in nanoseconds, and without any time zone. Of the Temporal
* classes carrying human-readable time information, it is the most general
* and complete one. `Temporal.PlainDate`, `Temporal.PlainTime`, `Temporal.PlainYearMonth`,
* and `Temporal.PlainMonthDay` all carry less information and should be used when
* complete information is not required.
*
* See https://tc39.es/proposal-temporal/docs/datetime.html for more details.
*
* @category Temporal
* @experimental
*/
export class PlainDateTime {
static from(
item: Temporal.PlainDateTime | PlainDateTimeLike | string,
options?: AssignmentOptions,
): Temporal.PlainDateTime;
static compare(
one: Temporal.PlainDateTime | PlainDateTimeLike | string,
two: Temporal.PlainDateTime | PlainDateTimeLike | string,
): ComparisonResult;
constructor(
isoYear: number,
isoMonth: number,
isoDay: number,
hour?: number,
minute?: number,
second?: number,
millisecond?: number,
microsecond?: number,
nanosecond?: number,
calendar?: string,
);
readonly era: string | undefined;
readonly eraYear: number | undefined;
readonly year: number;
readonly month: number;
readonly monthCode: string;
readonly day: number;
readonly hour: number;
readonly minute: number;
readonly second: number;
readonly millisecond: number;
readonly microsecond: number;
readonly nanosecond: number;
readonly calendarId: string;
readonly dayOfWeek: number;
readonly dayOfYear: number;
readonly weekOfYear: number | undefined;
readonly yearOfWeek: number | undefined;
readonly daysInWeek: number;
readonly daysInYear: number;
readonly daysInMonth: number;
readonly monthsInYear: number;
readonly inLeapYear: boolean;
equals(other: Temporal.PlainDateTime | PlainDateTimeLike | string): boolean;
with(
dateTimeLike: PlainDateTimeLike,
options?: AssignmentOptions,
): Temporal.PlainDateTime;
withPlainTime(
timeLike?: Temporal.PlainTime | PlainTimeLike | string,
): Temporal.PlainDateTime;
withCalendar(calendar: CalendarLike): Temporal.PlainDateTime;
add(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainDateTime;
subtract(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainDateTime;
until(
other: Temporal.PlainDateTime | PlainDateTimeLike | string,
options?: DifferenceOptions<
| "year"
| "month"
| "week"
| "day"
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
since(
other: Temporal.PlainDateTime | PlainDateTimeLike | string,
options?: DifferenceOptions<
| "year"
| "month"
| "week"
| "day"
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
round(
roundTo: RoundTo<
| "day"
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.PlainDateTime;
toZonedDateTime(
tzLike: TimeZoneLike,
options?: ToInstantOptions,
): Temporal.ZonedDateTime;
toPlainDate(): Temporal.PlainDate;
toPlainTime(): Temporal.PlainTime;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: CalendarTypeToStringOptions): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.PlainDateTime";
}
/**
* @category Temporal
* @experimental
*/
export type PlainMonthDayLike = {
era?: string | undefined;
eraYear?: number | undefined;
year?: number;
month?: number;
monthCode?: string;
day?: number;
calendar?: CalendarLike;
};
/**
* A `Temporal.PlainMonthDay` represents a particular day on the calendar, but
* without a year. For example, it could be used to represent a yearly
* recurring event, like "Bastille Day is on the 14th of July."
*
* See https://tc39.es/proposal-temporal/docs/monthday.html for more details.
*
* @category Temporal
* @experimental
*/
export class PlainMonthDay {
static from(
item: Temporal.PlainMonthDay | PlainMonthDayLike | string,
options?: AssignmentOptions,
): Temporal.PlainMonthDay;
constructor(
isoMonth: number,
isoDay: number,
calendar?: string,
referenceISOYear?: number,
);
readonly monthCode: string;
readonly day: number;
readonly calendarId: string;
equals(other: Temporal.PlainMonthDay | PlainMonthDayLike | string): boolean;
with(
monthDayLike: PlainMonthDayLike,
options?: AssignmentOptions,
): Temporal.PlainMonthDay;
toPlainDate(year: { year: number }): Temporal.PlainDate;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: ShowCalendarOption): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.PlainMonthDay";
}
/**
* @category Temporal
* @experimental
*/
export type PlainTimeLike = {
hour?: number;
minute?: number;
second?: number;
millisecond?: number;
microsecond?: number;
nanosecond?: number;
};
/**
* A `Temporal.PlainTime` represents a wall-clock time, with a precision in
* nanoseconds, and without any time zone. "Wall-clock time" refers to the
* concept of a time as expressed in everyday usage — the time that you read
* off the clock on the wall. For example, it could be used to represent an
* event that happens daily at a certain time, no matter what time zone.
*
* `Temporal.PlainTime` refers to a time with no associated calendar date; if you
* need to refer to a specific time on a specific day, use
* `Temporal.PlainDateTime`. A `Temporal.PlainTime` can be converted into a
* `Temporal.PlainDateTime` by combining it with a `Temporal.PlainDate` using the
* `toPlainDateTime()` method.
*
* See https://tc39.es/proposal-temporal/docs/plaintime.html for more details.
*
* @category Temporal
* @experimental
*/
export class PlainTime {
static from(
item: Temporal.PlainTime | PlainTimeLike | string,
options?: AssignmentOptions,
): Temporal.PlainTime;
static compare(
one: Temporal.PlainTime | PlainTimeLike | string,
two: Temporal.PlainTime | PlainTimeLike | string,
): ComparisonResult;
constructor(
hour?: number,
minute?: number,
second?: number,
millisecond?: number,
microsecond?: number,
nanosecond?: number,
);
readonly hour: number;
readonly minute: number;
readonly second: number;
readonly millisecond: number;
readonly microsecond: number;
readonly nanosecond: number;
equals(other: Temporal.PlainTime | PlainTimeLike | string): boolean;
with(
timeLike: Temporal.PlainTime | PlainTimeLike,
options?: AssignmentOptions,
): Temporal.PlainTime;
add(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainTime;
subtract(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainTime;
until(
other: Temporal.PlainTime | PlainTimeLike | string,
options?: DifferenceOptions<
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
since(
other: Temporal.PlainTime | PlainTimeLike | string,
options?: DifferenceOptions<
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
round(
roundTo: RoundTo<
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.PlainTime;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: ToStringPrecisionOptions): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.PlainTime";
}
/**
* Any of these types can be passed to Temporal methods instead of a time zone ID.
*
* @category Temporal
* @experimental
*/
export type TimeZoneLike = string | ZonedDateTime;
/**
* @category Temporal
* @experimental
*/
export type PlainYearMonthLike = {
era?: string | undefined;
eraYear?: number | undefined;
year?: number;
month?: number;
monthCode?: string;
calendar?: CalendarLike;
};
/**
* A `Temporal.PlainYearMonth` represents a particular month on the calendar. For
* example, it could be used to represent a particular instance of a monthly
* recurring event, like "the June 2019 meeting".
*
* See https://tc39.es/proposal-temporal/docs/yearmonth.html for more details.
*
* @category Temporal
* @experimental
*/
export class PlainYearMonth {
static from(
item: Temporal.PlainYearMonth | PlainYearMonthLike | string,
options?: AssignmentOptions,
): Temporal.PlainYearMonth;
static compare(
one: Temporal.PlainYearMonth | PlainYearMonthLike | string,
two: Temporal.PlainYearMonth | PlainYearMonthLike | string,
): ComparisonResult;
constructor(
isoYear: number,
isoMonth: number,
calendar?: string,
referenceISODay?: number,
);
readonly era: string | undefined;
readonly eraYear: number | undefined;
readonly year: number;
readonly month: number;
readonly monthCode: string;
readonly calendarId: string;
readonly daysInMonth: number;
readonly daysInYear: number;
readonly monthsInYear: number;
readonly inLeapYear: boolean;
equals(
other: Temporal.PlainYearMonth | PlainYearMonthLike | string,
): boolean;
with(
yearMonthLike: PlainYearMonthLike,
options?: AssignmentOptions,
): Temporal.PlainYearMonth;
add(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainYearMonth;
subtract(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.PlainYearMonth;
until(
other: Temporal.PlainYearMonth | PlainYearMonthLike | string,
options?: DifferenceOptions<"year" | "month">,
): Temporal.Duration;
since(
other: Temporal.PlainYearMonth | PlainYearMonthLike | string,
options?: DifferenceOptions<"year" | "month">,
): Temporal.Duration;
toPlainDate(day: { day: number }): Temporal.PlainDate;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: ShowCalendarOption): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.PlainYearMonth";
}
/**
* @category Temporal
* @experimental
*/
export type ZonedDateTimeLike = {
era?: string | undefined;
eraYear?: number | undefined;
year?: number;
month?: number;
monthCode?: string;
day?: number;
hour?: number;
minute?: number;
second?: number;
millisecond?: number;
microsecond?: number;
nanosecond?: number;
offset?: string;
timeZone?: TimeZoneLike;
calendar?: CalendarLike;
};
/**
* @category Temporal
* @experimental
*/
export class ZonedDateTime {
static from(
item: Temporal.ZonedDateTime | ZonedDateTimeLike | string,
options?: ZonedDateTimeAssignmentOptions,
): ZonedDateTime;
static compare(
one: Temporal.ZonedDateTime | ZonedDateTimeLike | string,
two: Temporal.ZonedDateTime | ZonedDateTimeLike | string,
): ComparisonResult;
constructor(epochNanoseconds: bigint, timeZone: string, calendar?: string);
readonly era: string | undefined;
readonly eraYear: number | undefined;
readonly year: number;
readonly month: number;
readonly monthCode: string;
readonly day: number;
readonly hour: number;
readonly minute: number;
readonly second: number;
readonly millisecond: number;
readonly microsecond: number;
readonly nanosecond: number;
readonly timeZoneId: string;
readonly calendarId: string;
readonly dayOfWeek: number;
readonly dayOfYear: number;
readonly weekOfYear: number | undefined;
readonly yearOfWeek: number | undefined;
readonly hoursInDay: number;
readonly daysInWeek: number;
readonly daysInMonth: number;
readonly daysInYear: number;
readonly monthsInYear: number;
readonly inLeapYear: boolean;
readonly offsetNanoseconds: number;
readonly offset: string;
readonly epochMilliseconds: number;
readonly epochNanoseconds: bigint;
equals(other: Temporal.ZonedDateTime | ZonedDateTimeLike | string): boolean;
with(
zonedDateTimeLike: ZonedDateTimeLike,
options?: ZonedDateTimeAssignmentOptions,
): Temporal.ZonedDateTime;
withPlainTime(
timeLike?: Temporal.PlainTime | PlainTimeLike | string,
): Temporal.ZonedDateTime;
withCalendar(calendar: CalendarLike): Temporal.ZonedDateTime;
withTimeZone(timeZone: TimeZoneLike): Temporal.ZonedDateTime;
add(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.ZonedDateTime;
subtract(
durationLike: Temporal.Duration | DurationLike | string,
options?: ArithmeticOptions,
): Temporal.ZonedDateTime;
until(
other: Temporal.ZonedDateTime | ZonedDateTimeLike | string,
options?: Temporal.DifferenceOptions<
| "year"
| "month"
| "week"
| "day"
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
since(
other: Temporal.ZonedDateTime | ZonedDateTimeLike | string,
options?: Temporal.DifferenceOptions<
| "year"
| "month"
| "week"
| "day"
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.Duration;
round(
roundTo: RoundTo<
| "day"
| "hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond"
>,
): Temporal.ZonedDateTime;
startOfDay(): Temporal.ZonedDateTime;
getTimeZoneTransition(
direction: TransitionDirection,
): Temporal.ZonedDateTime | null;
toInstant(): Temporal.Instant;
toPlainDateTime(): Temporal.PlainDateTime;
toPlainDate(): Temporal.PlainDate;
toPlainTime(): Temporal.PlainTime;
toLocaleString(
locales?: string | string[],
options?: Intl.DateTimeFormatOptions,
): string;
toJSON(): string;
toString(options?: ZonedDateTimeToStringOptions): string;
valueOf(): never;
readonly [Symbol.toStringTag]: "Temporal.ZonedDateTime";
}
/**
* The `Temporal.Now` object has several methods which give information about
* the current date, time, and time zone.
*
* See https://tc39.es/proposal-temporal/docs/now.html for more details.
*
* @category Temporal
* @experimental
*/
export const Now: {
/**
* Get the exact system date and time as a `Temporal.Instant`.
*
* This method gets the current exact system time, without regard to
* calendar or time zone. This is a good way to get a timestamp for an
* event, for example. It works like the old-style JavaScript `Date.now()`,
* but with nanosecond precision instead of milliseconds.
*
* Note that a `Temporal.Instant` doesn't know about time zones. For the
* exact time in a specific time zone, use `Temporal.Now.zonedDateTimeISO`
* or `Temporal.Now.zonedDateTime`.
*/
instant: () => Temporal.Instant;
/**
* Get the current calendar date and clock time in a specific time zone,
* using the ISO 8601 calendar.
*
* @param {TimeZoneLike} [tzLike] -
* {@link https://en.wikipedia.org/wiki/List_of_tz_database_time_zones|IANA time zone identifier}
* string (e.g. `'Europe/London'`). If omitted, the environment's
* current time zone will be used.
*/
zonedDateTimeISO: (tzLike?: TimeZoneLike) => Temporal.ZonedDateTime;
/**
* Get the current date and clock time in a specific time zone, using the
* ISO 8601 calendar.
*
* Note that the `Temporal.PlainDateTime` type does not persist the time zone,
* but retaining the time zone is required for most time-zone-related use
* cases. Therefore, it's usually recommended to use
* `Temporal.Now.zonedDateTimeISO` instead of this function.
*
* @param {TimeZoneLike} [tzLike] -
* {@link https://en.wikipedia.org/wiki/List_of_tz_database_time_zones|IANA time zone identifier}
* string (e.g. `'Europe/London'`). If omitted, the environment's
* current time zone will be used.
*/
plainDateTimeISO: (tzLike?: TimeZoneLike) => Temporal.PlainDateTime;
/**
* Get the current date in a specific time zone, using the ISO 8601
* calendar.
*
* @param {TimeZoneLike} [tzLike] -
* {@link https://en.wikipedia.org/wiki/List_of_tz_database_time_zones|IANA time zone identifier}
* string (e.g. `'Europe/London'`). If omitted, the environment's
* current time zone will be used.
*/
plainDateISO: (tzLike?: TimeZoneLike) => Temporal.PlainDate;
/**
* Get the current clock time in a specific time zone, using the ISO 8601 calendar.
*
* @param {TimeZoneLike} [tzLike] -
* {@link https://en.wikipedia.org/wiki/List_of_tz_database_time_zones|IANA time zone identifier}
* string (e.g. `'Europe/London'`). If omitted, the environment's
* current time zone will be used.
*/
plainTimeISO: (tzLike?: TimeZoneLike) => Temporal.PlainTime;
/**
* Get the identifier of the environment's current time zone.
*
* This method gets the identifier of the current system time zone. This
* will usually be a named
* {@link https://en.wikipedia.org/wiki/List_of_tz_database_time_zones|IANA time zone}.
*/
timeZoneId: () => string;
readonly [Symbol.toStringTag]: "Temporal.Now";
};
}
/**
* @category Temporal
* @experimental
*/
interface Date {
toTemporalInstant(): Temporal.Instant;
}
/**
* @category Intl
* @experimental
*/
declare namespace Intl {
/**
* @category Intl
* @experimental
*/
export type Formattable =
| Date
| Temporal.Instant
| Temporal.ZonedDateTime
| Temporal.PlainDate
| Temporal.PlainTime
| Temporal.PlainDateTime
| Temporal.PlainYearMonth
| Temporal.PlainMonthDay;
/**
* @category Intl
* @experimental
*/
export interface DateTimeFormatRangePart {
source: "shared" | "startRange" | "endRange";
}
/**
* @category Intl
* @experimental
*/
export interface DateTimeFormat {
/**
* Format a date into a string according to the locale and formatting
* options of this `Intl.DateTimeFormat` object.
*
* @param date The date to format.
*/
format(date?: Formattable | number): string;
/**
* Allow locale-aware formatting of strings produced by
* `Intl.DateTimeFormat` formatters.
*
* @param date The date to format.
*/
formatToParts(
date?: Formattable | number,
): globalThis.Intl.DateTimeFormatPart[];
/**
* Format a date range in the most concise way based on the locale and
* options provided when instantiating this `Intl.DateTimeFormat` object.
*
* @param startDate The start date of the range to format.
* @param endDate The start date of the range to format. Must be the same
* type as `startRange`.
*/
formatRange<T extends Formattable>(startDate: T, endDate: T): string;
formatRange(startDate: Date | number, endDate: Date | number): string;
/**
* Allow locale-aware formatting of tokens representing each part of the
* formatted date range produced by `Intl.DateTimeFormat` formatters.
*
* @param startDate The start date of the range to format.
* @param endDate The start date of the range to format. Must be the same
* type as `startRange`.
*/
formatRangeToParts<T extends Formattable>(
startDate: T,
endDate: T,
): DateTimeFormatRangePart[];
formatRangeToParts(
startDate: Date | number,
endDate: Date | number,
): DateTimeFormatRangePart[];
}
/**
* @category Intl
* @experimental
*/
export interface DateTimeFormatOptions {
// TODO: remove the props below after TS lib declarations are updated
dayPeriod?: "narrow" | "short" | "long";
dateStyle?: "full" | "long" | "medium" | "short";
timeStyle?: "full" | "long" | "medium" | "short";
}
}
/**
* A typed array of 16-bit float values. The contents are initialized to 0. If the requested number
* of bytes could not be allocated an exception is raised.
*
* @category Platform
* @experimental
*/
interface Float16Array<TArrayBuffer extends ArrayBufferLike = ArrayBufferLike> {
/**
* The size in bytes of each element in the array.
*/
readonly BYTES_PER_ELEMENT: number;
/**
* The ArrayBuffer instance referenced by the array.
*/
readonly buffer: TArrayBuffer;
/**
* The length in bytes of the array.
*/
readonly byteLength: number;
/**
* The offset in bytes of the array.
*/
readonly byteOffset: number;
/**
* Returns the item located at the specified index.
* @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
*/
at(index: number): number | undefined;
/**
* Returns the this object after copying a section of the array identified by start and end
* to the same array starting at position target
* @param target If target is negative, it is treated as length+target where length is the
* length of the array.
* @param start If start is negative, it is treated as length+start. If end is negative, it
* is treated as length+end.
* @param end If not specified, length of the this object is used as its default value.
*/
copyWithin(target: number, start: number, end?: number): this;
/**
* Determines whether all the members of an array satisfy the specified test.
* @param predicate A function that accepts up to three arguments. The every method calls
* the predicate function for each element in the array until the predicate returns a value
* which is coercible to the Boolean value false, or until the end of the array.
* @param thisArg An object to which the this keyword can refer in the predicate function.
* If thisArg is omitted, undefined is used as the this value.
*/
every(
predicate: (value: number, index: number, array: this) => unknown,
thisArg?: any,
): boolean;
/**
* Changes all array elements from `start` to `end` index to a static `value` and returns the modified array
* @param value value to fill array section with
* @param start index to start filling the array at. If start is negative, it is treated as
* length+start where length is the length of the array.
* @param end index to stop filling the array at. If end is negative, it is treated as
* length+end.
*/
fill(value: number, start?: number, end?: number): this;
/**
* Returns the elements of an array that meet the condition specified in a callback function.
* @param predicate A function that accepts up to three arguments. The filter method calls
* the predicate function one time for each element in the array.
* @param thisArg An object to which the this keyword can refer in the predicate function.
* If thisArg is omitted, undefined is used as the this value.
*/
filter(
predicate: (value: number, index: number, array: this) => any,
thisArg?: any,
): Float16Array<ArrayBuffer>;
/**
* Returns the value of the first element in the array where predicate is true, and undefined
* otherwise.
* @param predicate find calls predicate once for each element of the array, in ascending
* order, until it finds one where predicate returns true. If such an element is found, find
* immediately returns that element value. Otherwise, find returns undefined.
* @param thisArg If provided, it will be used as the this value for each invocation of
* predicate. If it is not provided, undefined is used instead.
*/
find(
predicate: (value: number, index: number, obj: this) => boolean,
thisArg?: any,
): number | undefined;
/**
* Returns the index of the first element in the array where predicate is true, and -1
* otherwise.
* @param predicate find calls predicate once for each element of the array, in ascending
* order, until it finds one where predicate returns true. If such an element is found,
* findIndex immediately returns that element index. Otherwise, findIndex returns -1.
* @param thisArg If provided, it will be used as the this value for each invocation of
* predicate. If it is not provided, undefined is used instead.
*/
findIndex(
predicate: (value: number, index: number, obj: this) => boolean,
thisArg?: any,
): number;
/**
* Returns the value of the last element in the array where predicate is true, and undefined
* otherwise.
* @param predicate findLast calls predicate once for each element of the array, in descending
* order, until it finds one where predicate returns true. If such an element is found, findLast
* immediately returns that element value. Otherwise, findLast returns undefined.
* @param thisArg If provided, it will be used as the this value for each invocation of
* predicate. If it is not provided, undefined is used instead.
*/
findLast<S extends number>(
predicate: (
value: number,
index: number,
array: this,
) => value is S,
thisArg?: any,
): S | undefined;
findLast(
predicate: (
value: number,
index: number,
array: this,
) => unknown,
thisArg?: any,
): number | undefined;
/**
* Returns the index of the last element in the array where predicate is true, and -1
* otherwise.
* @param predicate findLastIndex calls predicate once for each element of the array, in descending
* order, until it finds one where predicate returns true. If such an element is found,
* findLastIndex immediately returns that element index. Otherwise, findLastIndex returns -1.
* @param thisArg If provided, it will be used as the this value for each invocation of
* predicate. If it is not provided, undefined is used instead.
*/
findLastIndex(
predicate: (
value: number,
index: number,
array: this,
) => unknown,
thisArg?: any,
): number;
/**
* Performs the specified action for each element in an array.
* @param callbackfn A function that accepts up to three arguments. forEach calls the
* callbackfn function one time for each element in the array.
* @param thisArg An object to which the this keyword can refer in the callbackfn function.
* If thisArg is omitted, undefined is used as the this value.
*/
forEach(
callbackfn: (value: number, index: number, array: this) => void,
thisArg?: any,
): void;
/**
* Determines whether an array includes a certain element, returning true or false as appropriate.
* @param searchElement The element to search for.
* @param fromIndex The position in this array at which to begin searching for searchElement.
*/
includes(searchElement: number, fromIndex?: number): boolean;
/**
* Returns the index of the first occurrence of a value in an array.
* @param searchElement The value to locate in the array.
* @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
* search starts at index 0.
*/
indexOf(searchElement: number, fromIndex?: number): number;
/**
* Adds all the elements of an array separated by the specified separator string.
* @param separator A string used to separate one element of an array from the next in the
* resulting String. If omitted, the array elements are separated with a comma.
*/
join(separator?: string): string;
/**
* Returns the index of the last occurrence of a value in an array.
* @param searchElement The value to locate in the array.
* @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
* search starts at index 0.
*/
lastIndexOf(searchElement: number, fromIndex?: number): number;
/**
* The length of the array.
*/
readonly length: number;
/**
* Calls a defined callback function on each element of an array, and returns an array that
* contains the results.
* @param callbackfn A function that accepts up to three arguments. The map method calls the
* callbackfn function one time for each element in the array.
* @param thisArg An object to which the this keyword can refer in the callbackfn function.
* If thisArg is omitted, undefined is used as the this value.
*/
map(
callbackfn: (value: number, index: number, array: this) => number,
thisArg?: any,
): Float16Array<ArrayBuffer>;
/**
* Calls the specified callback function for all the elements in an array. The return value of
* the callback function is the accumulated result, and is provided as an argument in the next
* call to the callback function.
* @param callbackfn A function that accepts up to four arguments. The reduce method calls the
* callbackfn function one time for each element in the array.
* @param initialValue If initialValue is specified, it is used as the initial value to start
* the accumulation. The first call to the callbackfn function provides this value as an argument
* instead of an array value.
*/
reduce(
callbackfn: (
previousValue: number,
currentValue: number,
currentIndex: number,
array: this,
) => number,
): number;
reduce(
callbackfn: (
previousValue: number,
currentValue: number,
currentIndex: number,
array: this,
) => number,
initialValue: number,
): number;
/**
* Calls the specified callback function for all the elements in an array. The return value of
* the callback function is the accumulated result, and is provided as an argument in the next
* call to the callback function.
* @param callbackfn A function that accepts up to four arguments. The reduce method calls the
* callbackfn function one time for each element in the array.
* @param initialValue If initialValue is specified, it is used as the initial value to start
* the accumulation. The first call to the callbackfn function provides this value as an argument
* instead of an array value.
*/
reduce<U>(
callbackfn: (
previousValue: U,
currentValue: number,
currentIndex: number,
array: this,
) => U,
initialValue: U,
): U;
/**
* Calls the specified callback function for all the elements in an array, in descending order.
* The return value of the callback function is the accumulated result, and is provided as an
* argument in the next call to the callback function.
* @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
* the callbackfn function one time for each element in the array.
* @param initialValue If initialValue is specified, it is used as the initial value to start
* the accumulation. The first call to the callbackfn function provides this value as an
* argument instead of an array value.
*/
reduceRight(
callbackfn: (
previousValue: number,
currentValue: number,
currentIndex: number,
array: this,
) => number,
): number;
reduceRight(
callbackfn: (
previousValue: number,
currentValue: number,
currentIndex: number,
array: this,
) => number,
initialValue: number,
): number;
/**
* Calls the specified callback function for all the elements in an array, in descending order.
* The return value of the callback function is the accumulated result, and is provided as an
* argument in the next call to the callback function.
* @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
* the callbackfn function one time for each element in the array.
* @param initialValue If initialValue is specified, it is used as the initial value to start
* the accumulation. The first call to the callbackfn function provides this value as an argument
* instead of an array value.
*/
reduceRight<U>(
callbackfn: (
previousValue: U,
currentValue: number,
currentIndex: number,
array: this,
) => U,
initialValue: U,
): U;
/**
* Reverses the elements in an Array.
*/
reverse(): this;
/**
* Sets a value or an array of values.
* @param array A typed or untyped array of values to set.
* @param offset The index in the current array at which the values are to be written.
*/
set(array: ArrayLike<number>, offset?: number): void;
/**
* Returns a section of an array.
* @param start The beginning of the specified portion of the array.
* @param end The end of the specified portion of the array. This is exclusive of the element at the index 'end'.
*/
slice(start?: number, end?: number): Float16Array<ArrayBuffer>;
/**
* Determines whether the specified callback function returns true for any element of an array.
* @param predicate A function that accepts up to three arguments. The some method calls
* the predicate function for each element in the array until the predicate returns a value
* which is coercible to the Boolean value true, or until the end of the array.
* @param thisArg An object to which the this keyword can refer in the predicate function.
* If thisArg is omitted, undefined is used as the this value.
*/
some(
predicate: (value: number, index: number, array: this) => unknown,
thisArg?: any,
): boolean;
/**
* Sorts an array.
* @param compareFn Function used to determine the order of the elements. It is expected to return
* a negative value if first argument is less than second argument, zero if they're equal and a positive
* value otherwise. If omitted, the elements are sorted in ascending order.
* ```ts
* [11,2,22,1].sort((a, b) => a - b)
* ```
*/
sort(compareFn?: (a: number, b: number) => number): this;
/**
* Gets a new Float16Array view of the ArrayBuffer store for this array, referencing the elements
* at begin, inclusive, up to end, exclusive.
* @param begin The index of the beginning of the array.
* @param end The index of the end of the array.
*/
subarray(begin?: number, end?: number): Float16Array<TArrayBuffer>;
/**
* Converts a number to a string by using the current locale.
*/
toLocaleString(
locales?: string | string[],
options?: Intl.NumberFormatOptions,
): string;
/**
* Copies the array and returns the copy with the elements in reverse order.
*/
toReversed(): Float16Array<ArrayBuffer>;
/**
* Copies and sorts the array.
* @param compareFn Function used to determine the order of the elements. It is expected to return
* a negative value if the first argument is less than the second argument, zero if they're equal, and a positive
* value otherwise. If omitted, the elements are sorted in ascending order.
* ```ts
* const myNums = Float16Array.from([11.25, 2, -22.5, 1]);
* myNums.toSorted((a, b) => a - b) // Float16Array<Buffer>(4) [-22.5, 1, 2, 11.5]
* ```
*/
toSorted(
compareFn?: (a: number, b: number) => number,
): Float16Array<ArrayBuffer>;
/**
* Returns a string representation of an array.
*/
toString(): string;
/** Returns the primitive value of the specified object. */
valueOf(): this;
/**
* Copies the array and inserts the given number at the provided index.
* @param index The index of the value to overwrite. If the index is
* negative, then it replaces from the end of the array.
* @param value The value to insert into the copied array.
* @returns A copy of the original array with the inserted value.
*/
with(index: number, value: number): Float16Array<ArrayBuffer>;
[index: number]: number;
[Symbol.iterator](): ArrayIterator<number>;
/**
* Returns an array of key, value pairs for every entry in the array
*/
entries(): ArrayIterator<[number, number]>;
/**
* Returns an list of keys in the array
*/
keys(): ArrayIterator<number>;
/**
* Returns an list of values in the array
*/
values(): ArrayIterator<number>;
readonly [Symbol.toStringTag]: "Float16Array";
}
/**
* @category Platform
* @experimental
*/
interface Float16ArrayConstructor {
readonly prototype: Float16Array<ArrayBufferLike>;
new (length?: number): Float16Array<ArrayBuffer>;
new (array: ArrayLike<number> | Iterable<number>): Float16Array<ArrayBuffer>;
new <TArrayBuffer extends ArrayBufferLike = ArrayBuffer>(
buffer: TArrayBuffer,
byteOffset?: number,
length?: number,
): Float16Array<TArrayBuffer>;
/**
* The size in bytes of each element in the array.
*/
readonly BYTES_PER_ELEMENT: number;
/**
* Returns a new array from a set of elements.
* @param items A set of elements to include in the new array object.
*/
of(...items: number[]): Float16Array<ArrayBuffer>;
/**
* Creates an array from an array-like or iterable object.
* @param arrayLike An array-like object to convert to an array.
*/
from(arrayLike: ArrayLike<number>): Float16Array<ArrayBuffer>;
/**
* Creates an array from an array-like or iterable object.
* @param arrayLike An array-like object to convert to an array.
* @param mapfn A mapping function to call on every element of the array.
* @param thisArg Value of 'this' used to invoke the mapfn.
*/
from<T>(
arrayLike: ArrayLike<T>,
mapfn: (v: T, k: number) => number,
thisArg?: any,
): Float16Array<ArrayBuffer>;
/**
* Creates an array from an array-like or iterable object.
* @param elements An iterable object to convert to an array.
*/
from(elements: Iterable<number>): Float16Array<ArrayBuffer>;
/**
* Creates an array from an array-like or iterable object.
* @param elements An iterable object to convert to an array.
* @param mapfn A mapping function to call on every element of the array.
* @param thisArg Value of 'this' used to invoke the mapfn.
*/
from<T>(
elements: Iterable<T>,
mapfn?: (v: T, k: number) => number,
thisArg?: any,
): Float16Array<ArrayBuffer>;
}
/**
* @category Platform
* @experimental
*/
declare var Float16Array: Float16ArrayConstructor;
/**
* @category Platform
* @experimental
*/
interface Math {
/**
* Returns the nearest half precision float representation of a number.
* @param x A numeric expression.
*
* @category Platform
* @experimental
*/
f16round(x: number): number;
}
/**
* @category Platform
* @experimental
*/
interface DataView<TArrayBuffer extends ArrayBufferLike> {
/**
* Gets the Float16 value at the specified byte offset from the start of the view. There is
* no alignment constraint; multi-byte values may be fetched from any offset.
* @param byteOffset The place in the buffer at which the value should be retrieved.
* @param littleEndian If false or undefined, a big-endian value should be read.
*
* @category Platform
* @experimental
*/
getFloat16(byteOffset: number, littleEndian?: boolean): number;
/**
* Stores an Float16 value at the specified byte offset from the start of the view.
* @param byteOffset The place in the buffer at which the value should be set.
* @param value The value to set.
* @param littleEndian If false or undefined, a big-endian value should be written.
*
* @category Platform
* @experimental
*/
setFloat16(byteOffset: number, value: number, littleEndian?: boolean): void;
}