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A modern runtime for JavaScript and TypeScript.
https://deno.com/
53088e16de
This commit improves the error messages for the `deno test` async op sanitizer. It does this in two ways: - it uses handwritten error messages for each op that could be leaking - it includes traces showing where each op was started This "async op tracing" functionality is a new feature in deno_core. It likely has a significant performance impact, which is why it is only enabled in tests. |
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.cargo | ||
.devcontainer | ||
.github | ||
bench_util | ||
cli | ||
core | ||
docs | ||
ext | ||
runtime | ||
serde_v8 | ||
test_ffi | ||
test_util | ||
third_party@d245e127cc | ||
tools | ||
.dlint.json | ||
.dprint.json | ||
.editorconfig | ||
.gitattributes | ||
.gitignore | ||
.gitmodules | ||
.rustfmt.toml | ||
Cargo.lock | ||
Cargo.toml | ||
CODE_OF_CONDUCT.md | ||
LICENSE.md | ||
README.md | ||
Releases.md | ||
rust-toolchain.toml | ||
SECURITY.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.