React Js

React

React is a JavaScript library for building user interfaces created by Facebook.
It is maintained by Facebook and a community of individual developers and companies.
React is a tool for building UI components

What is Babel?

• Babel is a JavaScript compiler that can translate markup or programming languages into JavaScript.
• Babel is available for different conversions. React uses Babel to convert JSX into JavaScript.

What is JSX?

• JSX stands for JavaScript XML.
• JSX is an XML/HTML like extension to JavaScript.

What are components?

• Components are the building blocks of any React app and a typical React app will have many of these. Simply put, a component is a JavaScript class or function that optionally accepts inputs i.e. properties(props) and returns a React element that describes how a section of the UI (User Interface) should appear.
• Sample
• const Greeting = () =>  <h1>Hello World today!</h1> ;
• Out put is Hello World Today!

<p>react.js </p>

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