React JS
React. js is an open-source JavaScript library that is used for building user interfaces specifically for single-page applications.
It's used for handling the view layer for web and mobile apps. React also allows us to create reusable UI components.
React - Setup Development Environment :
Follow the below steps:
(1)Install Node.js and npm
Download Node.js and npm from
https://nodejs.org
Test that Node.js and npm were installed successfully by running the commands node -v and npm -v.
(2)Install the Git CLI
Download the Git CLI from
https://git-scm.com/downloads
Test that the Git CLI was installed successfully by running the command
git --version.
(3)Install Visual Studio Code
Download VS Code from
https://code.visualstudio.com/
Launch VS Code to test that it installed correctly.
react React is a JavaScript library for building user interfaces.
To get an overview of what React is, you can write React code directly in HTML.
But in order to use React in production, you need npm and Node.js installed.
The quickest way start learning React is to write React directly in your HTML files.
Start by including three scripts, the first two let us write React code in our JavaScripts, and the third, Babel, allows us to write JSX syntax and ES6 in older browsers.
function Hello() {
return Hello World!;
}
ReactDOM.render(, document.getElementById('mydiv'))
React. js/React is an open-source frontend framework that is based on JavaScript, developed by Facebook, and best known for its virtual DOM feature. With React, we recommend Express. js/Express as a backend service.
React has changed the way front-end developers think of building web apps. With virtual DOM, React makes UI updates as efficient as they can ever be, making your web app snappier.
For this React JS, you need to have experience with building front-end web applications with HTML, CSS, and JavaScript.