brew安装node

以安装node14为例

breww 安装node 使用 n 切换版本无效，去官网下载pkg 安装包没有这个问题

• 安装brew install node@14
• 卸载brew uninstall node@14
• 当执行brew install node@14命令。下载安装完成后会提升如下

If you need to have node\@14 first in your PATH, run:
echo 'export PATH="/usr/local/opt/node\@14/bin:\$PATH"' >> \~/.zshrc

For compilers to find node\@14 you may need to set:
export LDFLAGS="-L/usr/local/opt/node\@14/lib"
export CPPFLAGS="-I/usr/local/opt/node\@14/include"

• 意思是想让你配置node的环境变量，不然node的命令无法使用

整理后的命令

$ echo 'export PATH="/usr/local/opt/node@14/bin:$PATH"' >> ~/.zshrc
$ echo 'export LDFLAGS="-L/usr/local/opt/node@14/lib"' >> ~/.zshrc
$ echo 'export CPPFLAGS="-I/usr/local/opt/node@14/include"' >> ~/.zshrc
$ source ~/.zshrc

node 安装 yarn

npm install yarn@latest -g

设置数据源

首先设置npm或者yarn镜像为淘宝镜像 详情： 淘宝 NPM 镜像
npm config set registry https://registry.npm.taobao.org
yarn config set registry https://registry.npm.taobao.org