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A modern runtime for JavaScript and TypeScript.
https://deno.com/
7f8bf2537d
This is a prerequisite for fast streams work -- this particular resource used a custom `mpsc`-style stream, and this work will allow us to unify it with the streams in `ext/http` in time. Instead of using Option as an internal semaphore for "correctly completed EOF", we allow code to propagate errors into the channel which can be picked up by downstream sinks like Hyper. EOF is signalled using a more standard sender drop. |
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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:
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.