- npm安装以及不使用sudo修复报错
	- fix npm throwing error without sudo
		- ```zsh
		  npm config set prefix ~/.npm
		  export PATH="$PATH:$HOME/.npm/bin"
		  ```
	- change the mirrors/use cnpm
		- ```zsh
		  npm install -g cnpm --registry=https://registry.npm.taobao.org
		  ```
	- use nrm to manager resource
		- ```bash
		  npm install -g nrm --registry=https://registry.npm.taobao.org
		  nrm ls
		  -----------------------------------------------------
		  npm ---------- https://registry.npmjs.org/
		  yarn --------- https://registry.yarnpkg.com/
		  tencent ------ https://mirrors.cloud.tencent.com/npm/
		  cnpm --------- https://r.cnpmjs.org/
		  taobao ------- https://registry.npmmirror.com/
		  npmMirror ---- https://skimdb.npmjs.com/registry/
		  -----------------------------------------------------
		  nrm use taobao
		  ```