node -v
npm -v
npm list -g --depth=0
npm config set proxy=http://127.0.0.1:8087
npm config set https-proxy=http://127.0.0.1:8087npm config
set
proxy http:
//username
:password@server:port
npm config
set
https-proxy http:
//username
:pawword@server:port
npm config set registry=http://registry.npmjs.org
npm config set registry=http://registry.cnpmjs.org
npm config delete proxy
npm config list