Born when “Boom Boom Pow” by The Black Eyed Peas was number one on the charts, Angular JS is an open-source, client-side web framework. It was created to address challenges with the development of single-page applications and makes development easier by offering a consistent and reliable framework for Client-side Model View Controller (MVC).
Angular JS allows for easy and automatic data synchronization, assists the user in asking for dependencies, is testable from development up, and has simple HTML page views. Angular JS is best when working with two-way data binding.
Node JS does make it harder to deal with concurrency, create lots of nested callbacks, and it lacks a standard library.