Deno

Package Commands

Manage dependencies using deno.json imports, JSR packages, or npm modules. Cache remote modules and vendor dependencies.

8 commands

Pro Tips

Use 'deno add' to install JSR or npm packages with automatic import map updates.

Vendor dependencies with 'deno vendor' for offline development.

Prefer JSR packages over npm for better Deno compatibility.

Common Mistakes

Lock file (deno.lock) ensures reproducible builds - commit it.

npm: specifier requires Node.js compatibility mode for some packages.

Commands

Add Package

$ deno add @std/http

Add a JSR package to deno.json

Add npm Package

$ deno add npm:lodash

Add an npm package to deno.json

Cache Dependencies

$ deno cache script.ts

Download and cache dependencies

Install Dependencies

$ deno install

Install all dependencies from deno.json

Check Outdated

$ deno outdated

Check for outdated dependencies

Remove Package

$ deno remove @std/http

Remove a package from deno.json

Update Dependencies

$ deno outdated --update

Update dependencies to latest versions

Vendor Dependencies

$ deno vendor script.ts

Copy remote dependencies to local folder