tldr/pages/common/deno.md

deno

A secure runtime for JavaScript, TypeScript, and WebAssembly. Includes dependency management using npm or jsr, and tooling like bench, bundle, doc, and coverage. More information: https://docs.deno.com/runtime/reference/cli.

• Start a REPL (interactive shell, also known as Read-Eval-Print Loop):

deno

• Start a new project named sample and test it:

deno init sample && cd sample && deno test

• Run a file securely. It will ask (if needed) to allow net, read, etc:

deno run {{path/to/file.ts}}

• Run a file with explicit permissions or allow all (only if you trust the source):

deno run {{[--allow-env|--allow-net|--allow-write|--allow-all]}} {{jsr:@deno/deployctl}}

• List and run tasks from deno.json or scripts from package.json:

deno task

• Install dependencies listed in deno.json or package.json (also lock files):

deno install

• Check types, format, and lint (fix if possible):

deno check && deno fmt && deno lint --fix

• Compile the script, imported dependencies, and runtime into a self contained executable:

deno compile {{path/to/file.ts}}