- Rust 59%
- TypeScript 28.1%
- JavaScript 11.4%
- C 1.4%
4aeb5bde0e## Summary When `module.registerHooks()` registers load hooks, CJS modules imported via `import()` would get their hooks called twice — once through the ESM load hook bridge (Rust side) and once through the sync CJS load hook chain in `Module._load`. This caused `mustCall(fn, 1)` assertions to fail. Fix: skip the ESM load hook bridge for CJS modules (detected via file extension and `cjs_tracker`). CJS modules go through the default loader which already invokes the sync load hook chain with proper CJS globals (`exports`, `require`, `module`, `__filename`, `__dirname`). Also: - Pass `format` from JS load loop to Rust via `op_module_hooks_respond_load` - Add load request deduplication in `LoaderHookRegistry` (same pattern as resolve dedup) |
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| .cargo | ||
| .devcontainer | ||
| .github | ||
| cli | ||
| ext | ||
| libs | ||
| runtime | ||
| tests | ||
| tools | ||
| .dlint.json | ||
| .dprint.json | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .rustfmt.toml | ||
| Cargo.lock | ||
| Cargo.toml | ||
| CLAUDE.md | ||
| flake.lock | ||
| flake.nix | ||
| import_map.json | ||
| LICENSE.md | ||
| README.md | ||
| Releases.md | ||
| rust-toolchain.toml | ||
| x | ||
Deno
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
WinGet (Windows):
winget install --id=DenoLand.Deno
Scoop (Windows):
scoop install main/deno
Build and install from source
Complete instructions for building Deno from source can be found 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
- Deno Docs: official guides and reference docs for the Deno runtime, Deno Deploy, and beyond.
- Deno Standard Library: officially supported common utilities for Deno programs.
- JSR: The open-source package registry for modern JavaScript and TypeScript
- Developer Blog: Product updates, tutorials, and more from the Deno team.
Contributing
We appreciate your help! To contribute, please read our contributing instructions.