NVM introduction, NVM download, installation and use (node version management)

One 、nvm Introduce

     At work , We may be doing it at the same time 2 Development of one or more different projects , The needs of each project are different , Furthermore, different projects must rely on different versions of NodeJS Running environment , In this case , For maintaining multiple versions of node It will be a very troublesome thing ,nvm It is to solve this problem that , It can easily carry out multiple tests on the same device node Switch between versions .

Two 、nvm Download, install and use

2.1 nvm download

Installation package download address ：https://github.com/coreybutler/nvm-windows/releases ,windows System download nvm-setup.zip Installation package

2.2 nvm install

If it has been installed separately on the computer before node, To uninstall first , Then decompress nvm-setup.zip Installation package , Enter the unzipped folder , double-click exe Suffix file for installation

The following interface is to select and install nvm The path of , You can change the installation path , General default path

This is nodejs Installation position of , without nodejs Create a new folder ( Later, it was found that he would automatically generate a shortcut )

Open window command window+x choice windows PowerShell

After installation, enter nvm -v View version .

Set below setting.txt, Ignore not set
After installation , Find the path to install , Some simple configurations , open setting.txt

Add these two lines of code later

node_mirror: https://npm.taobao.org/mirrors/node/
npm_mirror: https://npm.taobao.org/mirrors/npm/

2.3 nvm Use

nvm off                     //  Ban node.js version management ( Don't unload anything )
nvm on                      //  Enable node.js version management 
nvm install <version>       //  install node.js The name of  version It's the version number   for example ：nvm install 8.12.0
nvm uninstall <version>     //  uninstall node.js Yes, orders , Uninstall the specified version of nodejs, When the installation fails, uninstall and use 
nvm ls                      //  Displays all installed node.js edition 
nvm list available          //  Displays all that can be installed node.js Version of 
nvm use <version>           //  Switch to use the specified nodejs edition 
nvm v                       //  Show nvm edition 
nvm install stable          //  Install the latest stable version 

See the picture below ：

If you use node -v, Tips node:command not found, You need to nvm use node Version number , See the picture below

The currently used... Is shown below node The version is 14.16.1