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# Deno
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2018-05-18 12:25:59 -04:00
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2023-04-16 16:08:05 -07:00
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[![](https://img.shields.io/crates/v/deno.svg)](https://crates.io/crates/deno)
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[![Twitter badge][]][Twitter link] [![Discord badge][]][Discord link]
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2023-07-25 05:44:50 +00:00
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[![YouTube badge][]][YouTube link]
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2019-03-05 00:01:32 -05:00
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2021-08-25 21:27:18 +08:00
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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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2019-02-19 23:25:52 -05:00
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2023-11-30 20:12:13 +01:00
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<<<<<<< HEAD
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2023-11-27 13:18:14 -06:00
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[Deno](https://www.deno.com)
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([/ˈdiːnoʊ/](http://ipa-reader.xyz/?text=%CB%88di%CB%90no%CA%8A), pronounced
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`dee-no`) is a JavaScript, TypeScript, and WebAssembly runtime with secure
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defaults and a great developer experience. It's built on [V8](https://v8.dev/),
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[Rust](https://www.rust-lang.org/), and [Tokio](https://tokio.rs/).
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Learn more about the Deno runtime
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[in the documentation](https://docs.deno.com/runtime/manual).
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## Installation
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Install the Deno runtime on your system using one of the commands below. Note
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that there are a number of ways to install Deno - a comprehensive list of
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installation options can be found
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[here](https://docs.deno.com/runtime/manual/getting_started/installation).
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2023-11-30 20:12:13 +01:00
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=======
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[Deno](https://deno.com/runtime) is a _simple_, _modern_ and _secure_ runtime
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for **JavaScript** and **TypeScript** that uses V8 and is built in Rust.
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### Features
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- [Secure by default.](https://deno.land/manual/basics/permissions) No file,
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network, or environment access, unless explicitly enabled.
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- Provides
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[web platform functionality and APIs](https://deno.land/manual/runtime/web_platform_apis),
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e.g. using ES modules, web workers, and `fetch()`.
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- Supports
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[TypeScript out of the box](https://deno.land/manual/advanced/typescript).
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- Ships only a single executable file.
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- [Built-in tooling](https://deno.land/manual/tools#built-in-tooling) including
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`deno test`, `deno fmt`, `deno bench`, and more.
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- Includes [a set of reviewed standard modules](https://deno.land/std/)
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guaranteed to work with Deno.
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- [Supports npm.](https://deno.land/manual/node)
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### Install
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>>>>>>> 8c07f52a7 (1.38.4 (#21398))
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2020-09-29 12:40:17 -03:00
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Shell (Mac, Linux):
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```sh
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curl -fsSL https://deno.land/install.sh | sh
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```
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2020-09-29 12:40:17 -03:00
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PowerShell (Windows):
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```powershell
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irm https://deno.land/install.ps1 | iex
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```
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2019-02-19 23:25:52 -05:00
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2020-09-29 12:40:17 -03:00
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[Homebrew](https://formulae.brew.sh/formula/deno) (Mac):
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2020-09-29 12:40:17 -03:00
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```sh
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brew install deno
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```
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2019-02-19 23:25:52 -05:00
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2020-09-29 12:40:17 -03:00
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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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2023-11-30 20:12:13 +01:00
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<<<<<<< HEAD
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2023-11-27 13:18:14 -06:00
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### Build and install from source
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2021-03-15 19:46:08 +08:00
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2023-11-27 13:18:14 -06:00
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Complete instructions for building Deno from source can be found in the manual
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[here](https://docs.deno.com/runtime/manual/references/contributing/building_from_source).
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2021-03-15 19:46:08 +08:00
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## Your first Deno program
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Deno can be used for many different applications, but is most commonly used to
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build web servers. Create a file called `server.ts` and include the following
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TypeScript code:
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2023-08-22 13:56:00 +08:00
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```ts
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Deno.serve((_req: Request) => {
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return new Response("Hello, world!");
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});
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```
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Run your server with the following command:
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```sh
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deno run --allow-net server.ts
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```
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This should start a local web server on
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[http://localhost:8000](http://localhost:8000).
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2023-04-16 16:08:05 -07:00
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2023-11-27 15:43:35 -06:00
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Learn more about writing and running Deno programs
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[in the docs](https://docs.deno.com/runtime/manual).
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## Additional resources
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- **[Deno Docs](https://docs.deno.com)**: official guides and reference docs for
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the Deno runtime, [Deno Deploy](https://deno.com/deploy), and beyond.
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- **[Deno Standard Library](https://deno.land/std)**: officially supported
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common utilities for Deno programs.
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- **[deno.land/x](https://deno.land/x)**: registry for third-party Deno modules.
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- **[Developer Blog](https://deno.com/blog)**: Product updates, tutorials, and
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more from the Deno team.
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## Contributing
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We appreciate your help! To contribute, please read our
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[contributing instructions](https://docs.deno.com/runtime/manual/references/contributing/).
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2023-11-30 20:12:13 +01:00
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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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# Install build dependencies
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apt install -y cmake protobuf-compiler # Linux
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brew install cmake protobuf # macOS
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# Build and install Deno
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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](https://examples.deno.land/hello-world):
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```sh
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deno run https://examples.deno.land/hello-world.ts
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```
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Or [setup a simple HTTP server](https://examples.deno.land/http-server):
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```ts
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Deno.serve((_req) => new Response("Hello, World!"));
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```
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[More Examples](https://examples.deno.land)
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### Additional Resources
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- **[The Deno Manual](https://deno.land/manual)** is a great starting point for
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[additional examples](https://deno.land/manual/examples),
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[setting up your environment](https://deno.land/manual/getting_started/setup_your_environment),
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[using npm](https://deno.land/manual/node), and more.
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- **[Runtime API reference](https://deno.land/api)** documents all APIs built
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into Deno CLI.
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- **[Deno Standard Modules](https://deno.land/std)** do not have external
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dependencies and are reviewed by the Deno core team.
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- **[deno.land/x](https://deno.land/x)** is the registry for third party
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modules.
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- **[Blog](https://deno.com/blog)** is where the Deno team shares important
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product updates and “how to”s about solving technical problems.
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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/references/contributing/).
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>>>>>>> 8c07f52a7 (1.38.4 (#21398))
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2020-09-29 12:40:17 -03:00
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2023-07-25 05:44:50 +00:00
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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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2023-04-16 16:08:05 -07:00
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[Twitter badge]: https://img.shields.io/twitter/follow/deno_land.svg?style=social&label=Follow
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[Twitter link]: https://twitter.com/intent/follow?screen_name=deno_land
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[YouTube badge]: https://img.shields.io/youtube/channel/subscribers/UCqC2G2M-rg4fzg1esKFLFIw?style=social
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[YouTube link]: https://www.youtube.com/@deno_land
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[Discord badge]: https://img.shields.io/discord/684898665143206084?logo=discord&style=social
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[Discord link]: https://discord.gg/deno
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