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.
Creating native Node.js addons can be real headache if you are comming from a interpreter language background. Most common pitfalls and mistakes leading to compilation and linking failures are discussed here.
How to build a simple that can be embedded into any React component to automatically update its state using AJAX.