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A modern runtime for JavaScript and TypeScript.
https://deno.com/
bac8171c40
Currently we are using the pure rust backend of `sha2`, which has subpar
performance compared to asm implementations. We already depend on
`ring`, so just use that instead of `sha2` for sha256/sha512 digests.
This also speeds up things like S3 uploads, which calculate sha digests
of the uploaded objects. On my local machine, this speeds up uploading a
100MB file (to a localhost s3 provider via`@aws-sdk/client-s3`) by about
2x
<details>
<summary>Benchmark:</summary>
```ts
import { createHmac } from "node:crypto";
for (
const size of [1, 10, 100, 1_000, 10_000, 100_000, 1_000_000, 10_000_000]
) {
const input = "a".repeat(size);
Deno.bench({
name: `sha256-${size}`,
fn() {
const _hash = createHmac("sha256", input).update(input).digest();
},
});
Deno.bench({
name: `sha512-${size}`,
fn() {
const _hash = createHmac("sha512", input).update(input).digest();
},
});
}
```
</details>
<details>
<summary>Results (arm64 macOS):</summary>
```
--- sha256-1 ---
../../deno/target/release/deno 2.527 µs 1.240 times faster
/Users/nathanwhit/.deno/bin/deno 3.132 µs
--- sha512-1 ---
../../deno/target/release/deno 3.364 µs 1.071 times faster
/Users/nathanwhit/.deno/bin/deno 3.603 µs
--- sha256-10 ---
../../deno/target/release/deno 3.060 µs 1.027 times faster
/Users/nathanwhit/.deno/bin/deno 3.144 µs
--- sha512-10 ---
../../deno/target/release/deno 3.583 µs 1.047 times faster
/Users/nathanwhit/.deno/bin/deno 3.751 µs
--- sha256-100 ---
../../deno/target/release/deno 3.695 µs 1.244 times faster
/Users/nathanwhit/.deno/bin/deno 4.598 µs
--- sha512-100 ---
../../deno/target/release/deno 3.386 µs 1.188 times faster
/Users/nathanwhit/.deno/bin/deno 4.021 µs
--- sha256-1000 ---
../../deno/target/release/deno 4.007 µs 3.230 times faster
/Users/nathanwhit/.deno/bin/deno 12.944 µs
--- sha512-1000 ---
../../deno/target/release/deno 6.463 µs 1.466 times faster
/Users/nathanwhit/.deno/bin/deno 9.477 µs
--- sha256-10000 ---
../../deno/target/release/deno 11.674 µs 6.981 times faster
/Users/nathanwhit/.deno/bin/deno 81.493 µs
--- sha512-10000 ---
../../deno/target/release/deno 31.250 µs 1.740 times faster
/Users/nathanwhit/.deno/bin/deno 54.364 µs
--- sha256-100000 ---
../../deno/target/release/deno 82.800 µs 9.393 times faster
/Users/nathanwhit/.deno/bin/deno 777.719 µs
--- sha512-100000 ---
../../deno/target/release/deno 269.726 µs 1.851 times faster
/Users/nathanwhit/.deno/bin/deno 499.243 µs
--- sha256-1000000 ---
../../deno/target/release/deno 808.662 µs 9.427 times faster
/Users/nathanwhit/.deno/bin/deno 7.623 ms
--- sha512-1000000 ---
../../deno/target/release/deno 2.672 ms 1.795 times faster
/Users/nathanwhit/.deno/bin/deno 4.795 ms
--- sha256-10000000 ---
../../deno/target/release/deno 7.823 ms 9.868 times faster
/Users/nathanwhit/.deno/bin/deno 77.201 ms
--- sha512-10000000 ---
../../deno/target/release/deno 26.197 ms 1.846 times faster
/Users/nathanwhit/.deno/bin/deno 48.356 ms
```
</details>
<details>
<summary>Results (x86_64 linux):</summary>
```
--- sha256-1 ---
/home/nathanwhit/.deno/bin/deno 10.726 µs 1.229 times faster
../../../deno/target/release-lite/deno 13.184 µs
--- sha512-1 ---
/home/nathanwhit/.deno/bin/deno 13.177 µs 1.051 times faster
../../../deno/target/release-lite/deno 13.845 µs
--- sha256-10 ---
/home/nathanwhit/.deno/bin/deno 13.156 µs 1.047 times faster
../../../deno/target/release-lite/deno 13.780 µs
--- sha512-10 ---
/home/nathanwhit/.deno/bin/deno 14.386 µs 1.029 times faster
../../../deno/target/release-lite/deno 14.807 µs
--- sha256-100 ---
/home/nathanwhit/.deno/bin/deno 14.580 µs 1.083 times faster
../../../deno/target/release-lite/deno 15.789 µs
--- sha512-100 ---
/home/nathanwhit/.deno/bin/deno 13.477 µs 1.131 times faster
../../../deno/target/release-lite/deno 15.238 µs
--- sha256-1000 ---
../../../deno/target/release-lite/deno 17.208 µs 1.116 times faster
/home/nathanwhit/.deno/bin/deno 19.198 µs
--- sha512-1000 ---
../../../deno/target/release-lite/deno 21.168 µs 1.026 times faster
/home/nathanwhit/.deno/bin/deno 21.717 µs
--- sha256-10000 ---
../../../deno/target/release-lite/deno 33.586 µs 1.990 times faster
/home/nathanwhit/.deno/bin/deno 66.837 µs
--- sha512-10000 ---
../../../deno/target/release-lite/deno 53.338 µs 1.009 times faster
/home/nathanwhit/.deno/bin/deno 53.817 µs
--- sha256-100000 ---
../../../deno/target/release-lite/deno 168.238 µs 3.063 times faster
/home/nathanwhit/.deno/bin/deno 515.354 µs
--- sha512-100000 ---
../../../deno/target/release-lite/deno 383.311 µs 1.036 times faster
/home/nathanwhit/.deno/bin/deno 397.122 µs
--- sha256-1000000 ---
../../../deno/target/release-lite/deno 1.474 ms 3.471 times faster
/home/nathanwhit/.deno/bin/deno 5.115 ms
--- sha512-1000000 ---
../../../deno/target/release-lite/deno 3.658 ms 1.057 times faster
/home/nathanwhit/.deno/bin/deno 3.865 ms
--- sha256-10000000 ---
../../../deno/target/release-lite/deno 16.438 ms 3.136 times faster
/home/nathanwhit/.deno/bin/deno 51.556 ms
--- sha512-10000000 ---
../../../deno/target/release-lite/deno 37.128 ms 1.056 times faster
/home/nathanwhit/.deno/bin/deno 39.220 ms
```
</details>
|
||
|---|---|---|
| .cargo | ||
| .devcontainer | ||
| .github | ||
| bench_util | ||
| cli | ||
| ext | ||
| resolvers | ||
| runtime | ||
| tests | ||
| tools | ||
| .dlint.json | ||
| .dprint.json | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .rustfmt.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| import_map.json | ||
| LICENSE.md | ||
| README.md | ||
| Releases.md | ||
| rust-toolchain.toml | ||
Deno
Deno
(/ˈdiːnoʊ/, pronounced
dee-no) is a JavaScript, TypeScript, and WebAssembly runtime with secure
defaults and a great developer experience. It's built on V8,
Rust, and Tokio.
Learn more about the Deno runtime in the documentation.
Installation
Install the Deno runtime on your system using one of the commands below. Note that there are a number of ways to install Deno - a comprehensive list of installation options can be found here.
Shell (Mac, Linux):
curl -fsSL https://deno.land/install.sh | sh
PowerShell (Windows):
irm https://deno.land/install.ps1 | iex
Homebrew (Mac):
brew install deno
Chocolatey (Windows):
choco install deno
WinGet (Windows):
winget install --id=DenoLand.Deno
Build and install from source
Complete instructions for building Deno from source can be found in the manual here.
Your first Deno program
Deno can be used for many different applications, but is most commonly used to
build web servers. Create a file called server.ts and include the following
TypeScript code:
Deno.serve((_req: Request) => {
return new Response("Hello, world!");
});
Run your server with the following command:
deno run --allow-net server.ts
This should start a local web server on http://localhost:8000.
Learn more about writing and running Deno programs in the docs.
Additional resources
- Deno Docs: official guides and reference docs for the Deno runtime, Deno Deploy, and beyond.
- Deno Standard Library: officially supported common utilities for Deno programs.
- deno.land/x: registry for third-party Deno modules.
- Developer Blog: Product updates, tutorials, and more from the Deno team.
Contributing
We appreciate your help! To contribute, please read our contributing instructions.