This tool was introduced by Facebook engineers in 2011. It offers new ways to operate web pages, provides high performances. Is a very dynamic UI and has many more advantages.
Angular.js is powered by Google. It supports HTML and enables proper structuring. Angular developers do not have to write databases, user interfaces and links separately. The angular.js framework takes care of that. It is popular and a single solution to make modern web applications, commonly single page apps.
It is vey useful when it comes to desktop applications. It is been gaining traction recently as a fine tool to build cross platforms applications and websites. It has public access and is widely used in Mac and LINUX system. The only fault in this tool is the size of the updates. One update can size around 40 Mb.