GyaanSetu WebDev’s Post

React What is Reactjs? ReactJS is a component-based JavaScript library used to build dynamic and interactive user interfaces. It simplifies the creation of single-page applications (SPAs) with a focus on performance and maintainability. import React from 'react': Imports React to create components and use JSX. function App() { ... }: Defines a functional component called App. return ( ... ): Returns JSX that represents the UI (a div with an h1 tag displaying "Hello, World!"). export default App: Exports the App component so it can be used elsewhere. React Work ? React operates by creating an in-memory virtual DOM rather than directly manipulating the browser’s DOM. It performs necessary manipulations within this virtual representation before applying changes to the actual browser DOM. Here’s how the process works: 1. Actual DOM and Virtual DOM Initially, there is an Actual DOM(Real DOM) containing a div with two child elements: h1 and h2. React maintains a previous Virtual DOM to track the U https://lnkd.in/gUubKPye

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