linux: npm配置镜像源

一，查看镜像源

$ npm config get registry

二，配置镜像源：

执行：

npm config set registry https://registry.npmmirror.com

如下：

lhd@lhd-pc:~$ npm config get registry
https://registry.npmjs.org/
lhd@lhd-pc:~$ npm config set registry https://registry.npmmirror.com
lhd@lhd-pc:~$ npm config get registry
https://registry.npmmirror.com