[node] NVM version management tool

nvm

Concept

nvm full name node.js version management, As the name suggests, it's a nodejs Version management tools . It allows you to install and switch different versions of nodejs.

download

Download address

Open the website and we can see that there are two versions ：

• nvm-noinstall.zip： Green installation free version , But you need to configure it when you use it .
• nvm-setup.zip： Installed version , Recommended

After downloading and installing , open CMD, Enter the command nvm, If the installation is successful, it will be shown as follows , You can see that it lists all kinds of commands .

install / management nodejs

1. View all locally installed versions ; There are optional parameters available, Show all downloadable versions .

nvm list [available]

2. install , The version number in the command can be customized .

nvm install 16.15.0

3. Use a specific version

nvm use 16.15.0

4. uninstall

nvm uninstall 16.15.0

Add

No installations recognized

If installing nvm Previously installed Node.js, After installation , Use nvm list The command should have listed the previously installed version numbers , But there was No installations recognized Tips , It means that there is no installed version .

It is said on the Internet that it is because of the installation nvm Uninstall the installed before node edition , Make sure it's clean . I'm different , I'm too lazy to unload , So I went through node -v After knowing my native version nvm install An identical version , So it can detect

Then you think it's ok ？ Does not , I nvm use I found it garbled , On the Internet, it is said to run in administrator mode cmd Can , I tried and still couldn't , So I obediently nvm and node It's all uninstalled , Then it was reinstalled nvm, Download various versions of node, That's all right. ,emmm, People still can't be too lazy

Set up domestic image

stay nvm install Download too slow when , You can set nvm Domestic mirror ：

Alibaba cloud

#  Set up npm_mirror:
nvm npm_mirror https://npmmirror.com/mirrors/npm/

#  Set up node_mirror:
nvm node_mirror https://npmmirror.com/mirrors/node/

Tencent cloud

#  Set up npm_mirror:
nvm npm_mirror http://mirrors.cloud.tencent.com/npm/
 
#  Set up node_mirror:
nvm node_mirror http://mirrors.cloud.tencent.com/nodejs-release/

Then you can experience the feeling of flying ！