Answers for "npm downgrade"

revert npm version

npm install -g [email protected]

npm downgrade package

npm view <package> versions // lets see what versions of package are available
npm install <package>@<version> // install desired version. Remember about flags which maybe you want to use (eg. -g for global)

// example for package 'express'
npm install [email protected]

how to downgrade node version

$ npm install -g n
$ n 6.10.3