JSX in React

What is JSX?

JSX is a JavaScript Extension Syntax used in React to easily write HTML and JavaScript together.

const jsx = <h1>This is JSX</h1>

This is simple JSX code in React. But the browser does not understand this JSX because it's not valid JavaScript code.

So to convert it to browser understandable JavaScript code, we use a tool like Babel which is a JavaScript compiler/transpiler.

or you can use create-react-app which internally uses Babel for the JSX to JavaScript …

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