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A modern runtime for JavaScript and TypeScript.
https://deno.com/
276e4125fc
Example usage: ``` # Trace every op except op_*tick* cargo run -- run --unstable -A --strace-ops=-tick '/Users/matt/Documents/github/deno/deno/ext/websocket/autobahn/autobahn_server.js # Trace any op matching op_*http* cargo run -- run --unstable -A --strace-ops=http ... ``` Example output: ``` [ 11.478] op_ws_get_buffer : Dispatched Slow [ 11.478] op_ws_get_buffer : Completed Slow [ 11.478] op_ws_send_binary : Dispatched Fast [ 11.478] op_ws_send_binary : Completed Fast [ 11.478] op_ws_next_event : Dispatched Async [ 11.478] op_try_close : Dispatched Fast [ 11.478] op_try_close : Completed Fast [ 11.478] op_timer_handle : Dispatched Fast [ 11.478] op_timer_handle : Completed Fast [ 11.478] op_sleep : Dispatched Asyn ``` |
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| .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 build dependencies
apt install -y cmake protobuf-compiler # Linux
brew install cmake protobuf # macOS
# Build and install Deno
cargo install deno --locked
See deno_install and releases for other options.
Getting Started
deno run https://examples.deno.land/hello-world.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.