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A modern runtime for JavaScript and TypeScript.
https://deno.com/
d763633781
Fetching of local files, added in #12545, returns a response with no headers, including the `Content-Type` header. This currently makes it not work with the WebAssembly streaming APIs, which require the response to have a content type of `application/wasm`. Since the only way to obtain a `Response` object with a non-empty `url` field is via `fetch()`, this change changes the content type requirement to only apply to responses whose url has the `file:` scheme. |
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cli | ||
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docs | ||
ext | ||
runtime | ||
serde_v8 | ||
test_ffi | ||
test_util | ||
third_party@bc48d46314 | ||
tools | ||
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.rustfmt.toml | ||
Cargo.lock | ||
Cargo.toml | ||
CODE_OF_CONDUCT.md | ||
LICENSE.md | ||
README.md | ||
Releases.md |
Deno
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.
Features
- Secure by default. No file, network, or environment access, unless explicitly enabled.
- Supports TypeScript out of the box.
- Ships only a single executable file.
- Built-in utilities.
- Set of reviewed standard modules that are guaranteed to work with Deno.
Install
Shell (Mac, Linux):
curl -fsSL https://deno.land/x/install/install.sh | sh
PowerShell (Windows):
iwr https://deno.land/x/install/install.ps1 -useb | iex
Homebrew (Mac):
brew install deno
Chocolatey (Windows):
choco install deno
Scoop (Windows):
scoop install deno
Build and install from source using Cargo:
cargo install deno --locked
See deno_install and releases for other options.
Getting Started
Try running a simple program:
deno run https://deno.land/std/examples/welcome.ts
Or a more complex one:
const listener = Deno.listen({ port: 8000 });
console.log("http://localhost:8000/");
for await (const conn of listener) {
serve(conn);
}
async function serve(conn: Deno.Conn) {
for await (const { respondWith } of Deno.serveHttp(conn)) {
respondWith(new Response("Hello world"));
}
}
You can find a deeper introduction, examples, and environment setup guides in the manual.
The complete API reference is available at the runtime documentation.
Contributing
We appreciate your help!
To contribute, please read our contributing instructions.