Easy everything in React & Next.js, page 5
JSX: Putting HTML Inside Your JavaScript Components
JSX is a syntax extension that lets you write HTML-like markup directly inside your JavaScript files, keeping UI logic and structure together. It's the standard way to define a React component's output. The footgun is that JSX is stricter than HTML.
React Components: Your UI Building Blocks
Think of React Components as custom, reusable HTML tags you create with JavaScript functions. Use them to build everything from buttons to page layouts, speeding up development.
Server Components, explained without the jargon
React Server Components render on the server and send the client a description of the result, not JavaScript. That means no bundle cost for server rendered parts and direct database access, with client components handling only the interactive pieces.
React interview cheatsheet: hooks rules in 60 seconds
The rules of hooks exist because React identifies each hook by call order, not by name. Call hooks only at the top level of a component or custom hook, never inside a loop, condition, or nested function, or state attaches to the wrong hook.
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