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Deno 🦕

Everything you need for TypeScript and JavaScript development, powered by the Deno runtime.

  • Zero-config Typescript support.
  • A complete development toolchain including a formatter, linter, test runner, and language server.
  • Complete support for standard Web APIs like fetch, WebSocket, or the Streams API.
  • An audited standard library.
  • Dependencies without node_modules or package.json.
  • Secure by default, requiring explicit permission for file, network or environment access.

Deno's complete and fast Rust-based toolchain is the perfect companion for Nova, bringing a truly zippy TypeScript development environment.

This extension provides the following integrations with Nova:

  • Typechecking, linting, completions, code actions, registry import suggestions, and more in your editor.
  • Tasks in Nova derived from Deno tasks.
  • Automatic formatting on save.
  • Automatic caching of dependencies on save.
  • Commands for renaming symbols, caching dependencies, formatting documents, and renaming symbols.
  • Symbol search and dedicated sidebar.
  • Task templates for deno run and deno bundle commands.
  • Global and per-project configuration settings.

Nova also has built-in support for Deno's debugger thanks to its Deno Debug project task (Project → Project Settings → Add Deno Debug using + in Tasks section).

How is this different to the TypeScript extension?

The excellent Nova Typescript extension assumes you are using the Node.js runtime and everything that ecosystem brings with it. The node_modules folder. require() imports. package.json. Less support for Web Platform APIs. No built-in formatter, linter, or test runner.

It can be a lot. If you just want to be able to create a .ts file in an empty folder and get programming, then this extension is for you!

Requirements 🎒

To use this extension, you must have the Deno runtime installed (v.1.10.3 or above). Installation instructions can be found here.

If you use Deno 1.18+, any deno.json configuration files will be automatically detected and used by this extension.

Support for Deno tasks requires Deno 1.20+.

Support for "cache on save" requires Deno 1.37.0+.

Commands ⌨️

  • Cache - Cache all external dependencies
  • Format Document - Format with Deno's formatter
  • Rename symbol - Rename variables, functions, etc.
  • Find Symbol - Search for symbols in the codebase
  • Restart Deno LSP server - You shouldn't have to do this, but it's nice to have when you start getting angry.

Configuration options ⚙️

All of the below can be configured at a global and per-project basis (via Project → Project Settings...).

  • Linting
  • Format on save
  • Cache on save
  • Unstable Deno APIs
  • Complete function calls

The following can be configured on a per-project basis:

  • Enable Deno features
  • Import maps
  • Enabled paths
  • Disabled paths
  • Trusted import hosts
  • Untrusted import hosts
  • Document preload limit
  • TypeScript isolate memory limit

Maintainers

Shoutouts 📣

Big thanks to Cameron Little's excellent Nova Typescript extension for providing an excellent reference (and a lot of code) for developing a great Nova extension.

Contributing 🤝

This extension is itself a Deno codebase. Come add features and fix bugs with us!