Download and install node, NPM and yarn

Catalog

1.node Download and install

2. Install Taobao image , Permanent use

3.yarn Installation  

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1.node Download and install

（1） Enter official website download | Node.js Chinese net

（2） choice “macOS Installation package ”, Go to download , Wait for download to complete

（3） Once the download is complete ,

（4） Double click to run the file just downloaded , The installation process will appear , Follow the installation process step by step , 

  Click on “ continue ” Go to the next page ,

  Click on the install ” Go to the next page ,

Click on “ close ”,

（5） Run the following commands in the terminal , testing node.js Has it been installed successfully ,

node -v

npm -v

2. Install Taobao image , Permanent use

  Run the following commands in the terminal ,

npm config set registry https://registry.npm.taobao.org

3.yarn Installation  

（1） Run the following commands in the terminal , 

npm install -g yarn

 If the previous command fails to install , Then try 
sudo npm install -g yarn

 

（2） see yarn edition , Check whether the installation is successful ,

yarn --version

OK,yarn Installation is successful ！