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A modern runtime for JavaScript and TypeScript. https://deno.com/
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Nayeem Rahman bc92f87298
fix(runtime): only discard extension sources if a snapshot is provided (#22023)
Fixes #21928.

We have a code path which empties the extension sources because they're
expected to be pre-executed in the snapshot. Instead of using
conditional compilation for that, we now just check if a snapshot was
provided.

Removes the `dont_use_runtime_snapshot` feature. We didn't allow not
providing a snapshot unless this feature was provided, now we always do.

Adds the `only_snapshotted_js_sources` feature for us to use in CLI.
This asserts that a snapshot is provided and gates the runtime
transpilation code so it isn't included in the executable.
2024-01-22 12:37:25 +00:00
.cargo feat: bring back WebGPU (#20812) 2023-12-09 01:19:16 +01:00
.devcontainer fix(devcontainer): moved settings to customizations/vscode (#21512) 2023-12-19 13:29:39 +01:00
.github chore: forward v1.39.4 release commit to main (#21933) 2024-01-13 20:32:50 -05:00
bench_util chore: forward v1.39.4 release commit to main (#21933) 2024-01-13 20:32:50 -05:00
cli fix(runtime): only discard extension sources if a snapshot is provided (#22023) 2024-01-22 12:37:25 +00:00
ext feat(web): ImageBitmap (#21898) 2024-01-22 12:08:01 +01:00
runtime fix(runtime): only discard extension sources if a snapshot is provided (#22023) 2024-01-22 12:37:25 +00:00
test_ffi chore: update copyright to 2024 (#21753) 2024-01-01 19:58:21 +00:00
test_napi chore: update copyright to 2024 (#21753) 2024-01-01 19:58:21 +00:00
test_util fix(ext/websocket): pass on uncaught errors in idleTimeout (#21846) 2024-01-09 19:56:54 +05:30
tools feat(web): ImageBitmap (#21898) 2024-01-22 12:08:01 +01:00
.dlint.json chore: update dlint to v0.37.0 for GitHub Actions (#17295) 2023-01-16 17:17:18 +01:00
.dprint.json fix: update deno_lint and swc (#21718) 2024-01-09 23:20:52 +00:00
.editorconfig chore: modify editorconfig settings (#21533) 2023-12-12 12:43:41 +09:00
.gitattributes fix(test): support typechecking docs with CRLF line endings (#12748) 2021-11-15 09:58:04 -05:00
.gitignore feat: Add "deno jupyter" subcommand (#20337) 2023-09-16 02:42:09 +02:00
.gitmodules chore: remove third_party submodule (#20201) 2023-08-19 09:56:12 +05:30
.rustfmt.toml chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
Cargo.lock feat(web): ImageBitmap (#21898) 2024-01-22 12:08:01 +01:00
Cargo.toml feat(web): ImageBitmap (#21898) 2024-01-22 12:08:01 +01:00
LICENSE.md chore: update LICENSE.md to 2024 (#21833) 2024-01-06 19:14:38 -05:00
README.md chore: Fix typo in README (#21354) 2023-11-27 21:43:35 +00:00
Releases.md chore: forward v1.39.4 release commit to main (#21933) 2024-01-13 20:32:50 -05:00
rust-toolchain.toml chore: update to Rust 1.75 (#21731) 2024-01-01 23:22:48 +01:00

Deno

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the deno mascot dinosaur standing in the rain

Deno (/ˈdiːnoʊ/, pronounced dee-no) is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults and a great developer experience. It's built on V8, Rust, and Tokio.

Learn more about the Deno runtime in the documentation.

Installation

Install the Deno runtime on your system using one of the commands below. Note that there are a number of ways to install Deno - a comprehensive list of installation options can be found here.

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

Build and install from source

Complete instructions for building Deno from source can be found in the manual here.

Your first Deno program

Deno can be used for many different applications, but is most commonly used to build web servers. Create a file called server.ts and include the following TypeScript code:

Deno.serve((_req: Request) => {
  return new Response("Hello, world!");
});

Run your server with the following command:

deno run --allow-net server.ts

This should start a local web server on http://localhost:8000.

Learn more about writing and running Deno programs in the docs.

Additional resources

Contributing

We appreciate your help! To contribute, please read our contributing instructions.