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Why study React ?
 


React is a JavaScript library for building user interfaces.
ReactJS basically is an open-source JavaScript library which is used for building user interfaces specifically for single page applications. It’s used for handling view layer for web and mobile apps. React also allows us to create reusable UI components. React was first created by Jordan Walke, a software engineer working for Facebook. React first deployed on Facebook’s newsfeed in 2011 and on Instagram.com in 2012.

React allows developers to create large web applications which can change data, without reloading the page. The main purpose of React is to be fast, scalable, and simple. It works only on user interfaces in application. This corresponds to view in the MVC template. It can be used with a combination of other JavaScript libraries or frameworks, such as Angular JS in MVC.

 

Why React    ??
 

Fast Learning Curve       

React is very a simple and lightweight library that only deals with the view layer. It is not a beast like other MV* frameworks such as Angular or Ember.


Clean Abstraction

One of the powerful sides of React is that it provides a good abstraction which means that it does not expose any complex internals to the user.


Flux and Redux

Flux architecture is introduced and maintained by Facebook and they use it for their web applications. It complements React components by unidirectional data flow.

 

Fast render with Virtual DOM

When you are about to develop a web application that involves high user interaction and view updates, like the new form builder on JotForm 4.0, you have to consider the possible performance issues. Although today’s javascript engines are fast enough to handle such complex applications, DOM manipulations are still not that fast. Updating DOM is usually the bottleneck when it comes to the web performance. React is trying to solve this problem by using something called virtual DOM; a DOM kept in memory.


Reusable Components

React provides a component based structure. Components are your lego pieces. You start with tiny components like button, checkbox, dropdown etc. and the you create wrapper components composed of those smaller components. And then you write higher level wrapper components. And, it goes on like that until you have this one root component and that component is your app.

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