Angular

Angular is one of the best known JavaScript frameworks, developed by Google. In plain words, it is a set of ready-made building blocks that let developers put together complex, interactive interfaces quickly instead of writing everything from scratch.

You can think of Angular as a more modern and far more capable successor to jQuery, the library that did a similar job for the previous generation of websites.

The other widely used tool for the same purpose is React, which came out of Facebook. The two are not mutually exclusive — their strengths lie in different places, and a large project may well use both.

• Official site: angularjs.org
• The largest sites built on Angular