React JS is a JavaScript library designed for building fast and interactive user interfaces for both web and mobile applications. It functions within a model view controller architecture, with React serving as the view component, enabling easy creation of dynamic applications through reusable components and a small learning curve. The library utilizes JSX for UI descriptions and employs a virtual DOM for efficient updates by only modifying the changed objects in the real DOM.

1. SCO 114-115, 2nd Floor, sector 34A,Chandigarh, 160034 Contact +91 7347405486 +91 7508920783
info@ webliquidinfotech.com

2. What is React JS

3. React is JavaScript library
for building fast and
interactive user interfaces
for the web as well mobile
application

4. It is an open-source reusable
component based front-end library.

5. In a model view controller
architecture. React is the view
which is responsible for how
the app looks and feels.

7. Easy creation of dynamic web application
Performance enhancements
Reusable components
Unidirectional data flow
Small learning curve
Can be used for mobile apps.

9. JSX is a syntax extension to JavaScript.
It is used with react to describe what
the user interface should look like.

10. By using JSX, you can write HTML
structures in the same file that
contains JavaScript code.

11. +

12. React keeps a lightweight representation of the Real Dom
in the memory, and that is known as the Virtual Dom.
Manipulating Real Dom is much slower than manipulating
Virtual Dom.
When the state of an object changes, Virtual Dom changes
only that object in the Real Dom.