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105 lines
2.6 KiB
Markdown
105 lines
2.6 KiB
Markdown
# Deno
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[![Build Status - Cirrus][]][Build status] [![Twitter handle][]][Twitter badge]
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[](https://discord.gg/deno)
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<img align="right" src="https://deno.land/logo.svg" height="150px" alt="the deno mascot dinosaur standing in the rain">
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Deno is a _simple_, _modern_ and _secure_ runtime for **JavaScript** and
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**TypeScript** that uses V8 and is built in Rust.
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### Features
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- Secure by default. No file, network, or environment access, unless explicitly
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enabled.
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- Supports TypeScript out of the box.
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- Ships only a single executable file.
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- Built-in utilities like a dependency inspector (deno info) and a code
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formatter (deno fmt).
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- Set of reviewed standard modules that are guaranteed to work with
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[Deno](https://deno.land/std/).
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### Install
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Shell (Mac, Linux):
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```sh
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curl -fsSL https://deno.land/x/install/install.sh | sh
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```
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PowerShell (Windows):
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```powershell
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iwr https://deno.land/x/install/install.ps1 -useb | iex
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```
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[Homebrew](https://formulae.brew.sh/formula/deno) (Mac):
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```sh
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brew install deno
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```
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[Chocolatey](https://chocolatey.org/packages/deno) (Windows):
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```powershell
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choco install deno
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```
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[Scoop](https://scoop.sh/) (Windows):
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```powershell
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scoop install deno
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```
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Build and install from source using [Cargo](https://crates.io/crates/deno):
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```sh
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cargo install deno --locked
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```
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See
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[deno_install](https://github.com/denoland/deno_install/blob/master/README.md)
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and [releases](https://github.com/denoland/deno/releases) for other options.
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### Getting Started
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Try running a simple program:
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```sh
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deno run https://deno.land/std/examples/welcome.ts
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```
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Or a more complex one:
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```ts
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const listener = Deno.listen({ port: 8000 });
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console.log("http://localhost:8000/");
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for await (const conn of listener) {
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serve(conn);
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}
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async function serve(conn: Deno.Conn) {
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for await (const { respondWith } of Deno.serveHttp(conn)) {
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respondWith(new Response("Hello world"));
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}
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}
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```
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You can find a deeper introduction, examples, and environment setup guides in
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the [manual](https://deno.land/manual).
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The complete API reference is available at the runtime
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[documentation](https://doc.deno.land).
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### Contributing
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We appreciate your help!
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To contribute, please read our
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[contributing instructions](https://deno.land/manual/contributing).
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[Build Status - Cirrus]: https://github.com/denoland/deno/workflows/ci/badge.svg?branch=main&event=push
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[Build status]: https://github.com/denoland/deno/actions
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[Twitter badge]: https://twitter.com/intent/follow?screen_name=deno_land
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[Twitter handle]: https://img.shields.io/twitter/follow/deno_land.svg?style=social&label=Follow
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