$npm init
Create a package.json file
$npm install
Install all dependencies in package.json
$npm install <pkg>
Install a package
$npm install -D <pkg>
Install a package as an devDependency
$npm install -g <pkg>
Install a package globally
$npm update
Update packages
$npm uninstall <pkg>
Remove a package
$npm run <script>
Run a script defined in package.json
$npm cache clean --force
Clear npm cache
$npm list
List installed packages
$yarn add <pkg>
Add a package with yarn
$yarn remove <pkg>
Remove a package with yarn
$pnpm add <pkg>
Add a package with pnpm