More robust cheatsheet on Node.js core modules (Sorry for posting in javascript section, reason below)

Sorry for posting it in JavaScript section but if it has to be seen then it has to be posted here instead of node.js section.
I already know about codecademy cheatsheet. But it only gives a description about each module. I wanted a free pdf cheatsheet with more robust content. Does someone know then please do inform me…

Thanks in advance!