Differences between the JavaScript front-end frameworks, Angular and React

The two most popular JavaScript frameworks, Angular and React work with different ways. React is used in lightweight consumer-facing applications like Facebook, Netflix, and Instagram whereas Angular, due to broad nature and roots in the programming language, TypeScript, is used by enterprise developers who require a very structured code base for creation and maintenance of web applications.

New, Open source JavaScript library, Polymer
The advanced JavaScript framework Polymer will make it easy for web developers to build web applications by polyfilling places where web Components are not fully supported. Web Components puts HTML in the native component model playbook and develop a common component model for all developers.

Growing Usage of JavaScript
JavaScript is so accessible, fast, and easy to write as compare to other constrained structured programming languages. JavaScript delivered results very quickly and directly. It runs almost everywhere. It runs on the server with node, in the browser, on every operating system, on mobile devices with Native Script. That fact alone makes JavaScript best choice for every project.

TypeScript Usage by Developers
The web developers should have the knowledge of Angular along with TypeScript because Angular is written in TypeScript. If the developers are expert in TypeScript and Angular then they can easily build web and native mobile applications, all using the same language.