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The installation

Uninstall Node from your computer before installing it

  • Windows Settings –> Apply –> Find Node–> Uninstall
  • Restart the computer (or kill all Node related processes from task Manager)
  • Find the following folders and delete them. Depending on the version you have installed, these files may or may not exist:
    • C:\Program Files (x86)\Nodejs
    • C:\Program Files\Nodejs
    • C:\Users{User}\AppData\ folder \ NPM (or % AppData %\ NPM)
    • C:\Users{User}\AppData\Roaming\npm-cache (or % AppData % npm-cache)
  • Check the %PATH% environment variable to make sure there are no references to Nodejs and NPM
  • restart

Install using the installation package

Configure environment variables: NVM_HOME, NVM_SYMLINK

Check whether the installation is successful: nVM-v

Locate the configuration files and change the node and NPM installation sources to speed up node and NPM installation

C:\Users\sd401\AppData\Roaming\nvm\settings.txt

Add the bottom source address at the end

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

  • nvm ls availableGets the available Node version
  • nvm listLists the installed versions of Node, which can be abbreviated asnvm lsCommand.
  • nvm onEnable node version management.
  • nvm offDisabling the Node version does not uninstall anything.
  • nvm uninstall <version>Uninstall the specified version of Node.
  • nvm install <version>Install the specified version of Node.
  • nvm use <version>Use the specified version of Node.

Possible problems in use

  • After switching node versions, the global installation package is gone

Before installing the global package, change the default address of the global package

npm config set prefix "F:\nodejs\node global" 
npm config set cache "F:\nodejs\node cache"
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Then set the address of the global package into the path variable

Finally, you can install global packages. After installing the full packages, they will not be lost even if you switch node versions