Win10 uses NVM to install node, NPM, and cnpm

1.nvm-windows download

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

2. install nvm

First turn on the nvm-setup.zip decompression ( Whatever the address ); Then run as Administrator nvm-setup . choice nvm Installation directory is C:\Environment\Node\nvm,node Installation directory is C:\Environment\Node\nodejs, modify settings.txt The content is ：

##  The following contents are already configured during installation 
root: C:\Environment\Node\nvm
path: C:\Environment\Node\nodejs
##  The following contents need to be pasted 
node_mirror: http://npm.taobao.org/mirrors/node/
npm_mirror: https://npm.taobao.org/mirrors/npm/

3. modify nvm environment variable

My computer -> attribute -> Advanced system setup -> environment variable , Add environment variables to user variables ：

//  The environment variables are already configured by the software at the time of installation 
NVM_HOME:`C:\Environment\Node\nvm`
NVM_SYMLINK:`C:\Environment\Node\nvm`
PATH:%NVM_HOME%;%NVM_SYMLINK%
//（path  It has been saved 【%NVM_HOME%;%NVM_SYMLINK%】 Add to the end ）

4. adopt nvm install node

nvm -v //  see  nvm  edition 
nvm list available // View all available for download  node  edition 
nvm install 8.12.0 //  Download the specified version  nvm install latest  Install the latest version 
nvm use 8.12.0 //  Use the specified version 
nvm ls //  View the installed  nodejs  edition 
node -v //  see  nodejs  edition 

5. Install Global npm

install node When ,npm In fact, it has been installed together . because nvm Can manage multiple versions of node, If you add one at a time node It is troublesome to install a lot of packages in every version , If there is a npm You can make various versions of node share , It wouldn't be so troublesome , This is why we need to configure a global npm Why . In three simple steps, you can configure a global npm.
　　
1. For configuration npm Use when downloading packages -g Package path of global installation

npm config set prefix "C:\Environment\Node\npm

2. Install Global npm, Different node All use this npm, Want to update the overall npm First delete the global path ( Is the address of the last command , have access to npm config ls see , The default is .npmrl in ) Under the npm, Just execute this command again

npm install npm -g --registry=https://registry.npm.taobao.org

3. In the system environment variable Path Add C:\Environment\Node\npm, In this way, you can use the globally installed npm Package command .
Be careful ： After configuring the environment variables, be sure to click all the OK buttons to exit the environment variable setting , Then reopen a cmd The window will take effect .

4. verification npm Whether to install

npm -v

6. Some alternatives npm The way

1. Use taobao mirror cnmp replace npm

 npm install -g cnpm --registry=https://registry.npm.taobao.org 

2. verification cnpm Is it available

cnpm -v
cnpm config get registry 

Reference blog
https://www.cnblogs.com/wyy1234/p/9727142.html
https://blog.csdn.net/JZevin/article/details/108350411?spm=1001.2014.3001.5506