What is react js

May 14 2026

React js

1. React is an open-source javascript library for building user interface,
2. Create in Facebook company used for single-page application
3. npm (Note Package Manager) is the standard tool .Used in node.js

npm create vite@latest
project name
-> react
-> JavaScript
yes

Difference between libraries and frameworks?

libraries:A library is like a toolbox. It is command for codes in create role running process.
It is collection of codes .You control the flow
Libraries
React
jQuery
Axios

frameworks:Framework controls the flow Usually larger. give a full structure for applicatiuon.

Frameworks
Angular
Vue.js
Next.js
Express.js