Deno

A modern runtime for JavaScript and TypeScript.

RuntimeTypesDeno
denoland/denodeno.land

README

Deno

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the deno mascot dinosaur standing in the rain

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):

  1. ```sh
  2. curl -fsSL https://deno.land/install.sh | sh
  3. ```

PowerShell (Windows):

  1. ``` sh
  2. irm https://deno.land/install.ps1 | iex
  3. ```

Homebrew (Mac):

  1. ```sh
  2. brew install deno
  3. ```

Chocolatey (Windows):

  1. ``` sh
  2. choco install deno
  3. ```

Scoop (Windows):

  1. ``` sh
  2. scoop install deno
  3. ```

Build and install from source using Cargo:

  1. ```sh
  2. cargo install deno --locked
  3. ```

See
deno_install
and releases for other options.

Getting Started


Try running a simple program:

  1. ```sh
  2. deno run https://deno.land/std/examples/welcome.ts
  3. ```

Or a more complex one:

  1. ```ts
  2. const listener = Deno.listen({ port: 8000 });
  3. console.log("http://localhost:8000/");

  5. for await (const conn of listener) {
  6.   serve(conn);
  7. }

  9. async function serve(conn: Deno.Conn) {
  10.   for await (const { respondWith } of Deno.serveHttp(conn)) {
  11.     respondWith(new Response("Hello world"));
  12.   }
  13. }
  14. ```

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.

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