React for beginners
Learn React from the ground up: creating a project with Vite, components and JSX, props, state with useState, events, rendering lists with keys, conditional rendering, forms, side effects and data fetching with useEffect, lifting state up, and where to go next with routing and frameworks.
CodexBash, , 5 min read
React is the most widely used library for building user interfaces on the web. Instead of manually changing the page every time data changes, you describe what the screen should look like for the current data, and React updates the page efficiently when that data changes. You build the interface from small, reusable pieces called components. This guide covers the core ideas you need to build a real interface, assuming you know basic HTML, CSS and modern JavaScript.
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