jQuery is written in Javascript and Node.js is a Javascript runtime, so why using jQuery in Node.js doesn't make sense? (actually it might, but let's all agree that it doesn't)

A brief introduction on how to develop React components using Google's MDL framework

As a JavaScript engine, V8 implements a number of standard JS functionalities, which are available through the global proxy object. These can also be used inside C++ modules that are using V8 interface, such as Node.js addons.