🟦 Installs TypeScript tsc globally using npm

TypeScript is JavaScript with syntax for types.

TypeScript is a strongly typed programming language that builds on JavaScript, giving you better tooling at any scale.

— TypeScript

This Dev Container Feature installs tsc and tsserver by installing Node.js and npm and running npm install -g typescript.

// devcontainer.json
"features": {
  "ghcr.io/devcontainers-community/features/typescript": {}
}

You can specify a specific TypeScript version like this:

// devcontainer.json
"features": {
  "ghcr.io/devcontainers-community/features/typescript": {
    "version": "5.0.0"
  }
}