mirror of
https://github.com/denoland/deno.git
synced 2024-10-29 08:58:01 -04:00
A modern runtime for JavaScript and TypeScript.
https://deno.com/
ceecd8c495
This PR optimizes `structuredClone` when it's called without transferables. ### Benchmarks **main** ``` cpu: 13th Gen Intel(R) Core(TM) i9-13900H runtime: deno 1.37.1 (x86_64-unknown-linux-gnu) benchmark time (avg) iter/s (min … max) p75 p99 p995 ----------------------------------------------------------------------------------- ----------------------------- structuredClone object 1.64 µs/iter 611,086.0 (1.58 µs … 1.84 µs) 1.66 µs 1.84 µs 1.84 µs structuredClone transferables 2.82 µs/iter 354,281.4 (2.78 µs … 2.92 µs) 2.84 µs 2.92 µs 2.92 µs ``` **this PR** ``` cpu: 13th Gen Intel(R) Core(TM) i9-13900H runtime: deno 1.37.1 (x86_64-unknown-linux-gnu) structuredClone object 1 µs/iter 998,383.5 (971.28 ns … 1.2 µs) 1 µs 1.2 µs 1.2 µs structuredClone transferables 2.82 µs/iter 355,087.5 (2.7 µs … 3.07 µs) 2.83 µs 3.07 µs 3.07 µs ``` ```js Deno.bench("structuredClone object", () => { structuredClone({ foo: "bar" }); }); Deno.bench("structuredClone transferables", () => { const buf = new Uint8Array([97]); structuredClone(buf, { transfer: [buf.buffer], }); }); ``` |
||
---|---|---|
.cargo | ||
.devcontainer | ||
.github | ||
bench_util | ||
cli | ||
ext | ||
runtime | ||
test_ffi | ||
test_napi | ||
test_util | ||
tools | ||
.dlint.json | ||
.dprint.json | ||
.editorconfig | ||
.gitattributes | ||
.gitignore | ||
.gitmodules | ||
.rustfmt.toml | ||
Cargo.lock | ||
Cargo.toml | ||
LICENSE.md | ||
README.md | ||
Releases.md | ||
rust-toolchain.toml |
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.
- Provides
web platform functionality and APIs,
e.g. using ES modules, web workers, and
fetch()
. - Supports TypeScript out of the box.
- Ships only a single executable file.
- Built-in tooling including
deno test
,deno fmt
,deno bench
, and more. - Includes a set of reviewed standard modules guaranteed to work with Deno.
- Supports npm.
Install
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
Scoop (Windows):
scoop install deno
Build and install from source using Cargo:
# Install the Protobuf compiler
apt install -y protobuf-compiler # Linux
brew install protobuf # macOS
# Build and install Deno
cargo install deno --locked
See deno_install and releases for other options.
Getting Started
deno run https://deno.land/std/examples/welcome.ts
Or setup a simple HTTP server:
Deno.serve((_req) => new Response("Hello, World!"));
Additional Resources
- The Deno Manual is a great starting point for additional examples, setting up your environment, using npm, and more.
- Runtime API reference documents all APIs built into Deno CLI.
- Deno Standard Modules do not have external dependencies and are reviewed by the Deno core team.
- deno.land/x is the registry for third party modules.
- Blog is where the Deno team shares important product updates and “how to”s about solving technical problems.
Contributing
We appreciate your help!
To contribute, please read our contributing instructions.