When NPM is installed, it is stuck. There are five solutions

function npm install when , Stuck , Five solutions

1. Check the network settings , Delete node_modules again npm install

2. To configure npm agent

   //   To configure nmp Proxy to improve speed , Such as setting Taobao image 
   npm config set registry https://registry.npm.taobao.org 
   
   //  Check if the configuration is successful 
   npm config get registry 
   
   //  Restart after success npm install install 
   npm install
   

3. Use nrm To manage npm Mirror source

   //  Global installation nrm (mac Need to add sudo)
   npm install -g nrm
   
   //  View the list of configurable sources 
   nrm ls
   
   //  Use the source in the configuration list 
   nrm use taobao
   

4. Use cnpm To install

   //  Global installation cnpm (mac Need to add sudo)
   npm install cnpm -g --registry=https://registry.npmmirror.com
   
   //  Use... After success cnpm install install 
   cnpm install
   

5. Use yarn To install

   //  Global installation yarn (mac Need to add sudo)
   npm install -g yarn
   
   //  Use... After success yarn install install 
   yarn install