---
tags: [ packaging ]
---
# Every command shown here can be used with the `-g` switch for global scope

# To install a package in the current directory:
npm install <package>

# To install a package, and save it in the `dependencies` section of `package.json`:
npm install --save <package>

# To install a package, and save it in the `devDependencies` section of `package.json`:
npm install --save-dev <package>

# To show outdated packages in the current directory:
npm outdated

# To update outdated packages:
npm update

# To update `npm` (will override the one shipped with Node.js):
npm install -g npm

# To uninstall a package:
npm uninstall <package>


# use mirror
# https://npm.taobao.org/mirrors
# https://developer.aliyun.com/mirror/NPM
npm install -g cnpm --registry=https://registry.npm.taobao.org
NPM_CONFIG_ELECTRON_MIRROR=http://npm.taobao.org/mirrors/electron/ npm install

npm install phantomjs --phantomjs_cdnurl=http://npm.taobao.org/mirrors/phantomjs
ELECTRON_MIRROR=http://npm.taobao.org/mirrors/electron/ npm install -g electron