NPM commands

Initialize

Initialize a new project:

$myVar = 'test'

npm init

This command initialize the new project with a package.json file

Install package

Install a new package:

npm install packageName

A version or tags (@latest, @next) can be specified:

npm install packageName@latest
npm install packageName@next
npm install packageName@1.6.3
npm install packageName@2.0.0-alpha.5

Packages can be used only for development. Add the -D or --dev:

npm install -D packageName
npm install --dev packageName

Packages can also be installed globally, and then become available for all projects. Use the -g modifier:

npm install -g packageName

List package

List packages:

npm list

List first level packages:

npm list --depth=0

List packages and their dependendies on n levels

npm list --depth=3

List the packages and view the result in JSON:

npm list --json

Outdated packages

List outdated packages:

npm outdated

TIP

To update the package, launch a npm install command by specifying the wanted version of the package, eventually the @latest version.

Remove package

Remove a package

npm uninstall packageName