Difference between Angular 4 and ReactJS

1. Angular 4 : 
Angular 4 was launched 7 years after the official release of AngularJS. It is a open-source and JavaScript based framework for building web applications in JavaScript, html and TypeScript, which is a superset of JavaScript. Angular 4 was launched in the March 2017 and supports earlier TypeScript versions such as TypeScript 2.2 and 2.1. 

2. ReactJS : 
ReactJS is a declarative, dynamic and extensible JavaScript library utilized for building the front-end or user interface of an application. It is an open-source, component-based front end library responsible only for the view layer of web application and mobile application. It is provided and managed by Facebook. 

Difference between Angular 4 and ReactJS : 


S.No. Angular 4 ReactJS
1. It was developed by Google. It was developed by Facebook.
2. It is a complete framework. It is a JavaScript based library.
3. It is written using TypeScript. It is written in JavaScript.
4. It works using browser’s DOM. It works using Virtual DOM i.e., simplified version of DOM.
5. The number of developers using Angular 4 is more as compared to ReactJS. The number of developer using ReactJS is less.
6. It provides two-way data binding. It provides one-way data binding.
7. It is generally suited for building cross-platform mobile apps ,enterprise web applications and single page applications(SPA) too. It is used for dynamic and single page applications.
8. It is difficult for beginners to learn Angular 4, even after knowing JavaScript. It is simpler and easier to learn ReactJS for beginners who knows JavaScript.
9. Angular 4 is slow in performance in case of small or single page application. While it is far better in performance in case of small or single page application as compare to Angular 4.


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