How to use nvm tool to manage node version? Method introduction

Related recommendations: "node js tutorial"

nvm is a popular way to run Node.js. For example, it makes it easy to switch Node.js versions, as well as install a new version to try out and easily roll back if something goes wrong.

This is useful for testing code with older versions of Node.js.

1. Install nvm

Execute brew install nvm, then the report:

Error 1: Need to create an nvm The file is used to load the content of nvm

//在命令行执行：
mkdir ~/.nvm

Error 2: You need to add the following blue selected configuration to the ~/.zshrc file

//用vim打开该文件
vim ~/.zshrc 

//按i进入书写模式 把蓝色内容黏贴在下方
export NVM_DIR="$HOME/.nvm"
[ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"  # This loads nvm
[ -s "/usr/local/opt/nvm/etc/bash_completion" ] && . "/usr/local/opt/nvm/etc/bash_completion"

//按esc键 :wq保存退出

//此时再次执行brew install nvm还是如图一的报错。那是配置的.zshrc文件没生效。
//因此要在保存.zshrc文件后，在命令行执行使配置生效：
source ~/.zshrc

Enter nvm again. At this time, nvm has been installed. Yes, as well as its information and commands

2. nvm routine operations

mark only For reference, corrections and additions are welcome. Thanks

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