mac下安装npm环境

使用nvm进行管理：

1、打开 https://github.com/creationix/nvm， 找到README.md中的：

Installation

Install script

To install or update nvm, you can use the install script using cURL:

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.6/install.sh | bash

or Wget:

wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.6/install.sh | bash

2、复制标红命令到cmd窗口中执行

3、安装完成后cmd窗口最后会输出：

=> Close and reopen your terminal to start using nvm or run the following to use it now:

export NVM_DIR="$HOME/.nvm"

[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm

[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion

将标红命令依次复制到命令行里执行，完成环境适配

4、nvm完成安装。执行

nvm install 0.12.4

版本号可以依据自己需求进行修改。