React Components & Props — Free App Development Tutorial
Learn React Components & Props in App Development with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
TL;DR: Learn React Components & Props in App Development with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
React Components & Props in App Development
Components are the building blocks of a React app — each is a reusable, self-contained piece of UI.
Props (properties) are how parent components pass data down to child components.
Props are read-only — a component must never modify the props it receives.
Destructuring props in the function signature makes components cleaner and easier to read.
The children prop allows components to accept and render nested JSX content.
React Components & Props — Syntax
// Parent passes props
<Button color="blue" size="large" onClick={handleClick}>Click Me</Button>
// Child receives them
function Button({ color, size, onClick, children }) {
return (
<button style={{ background: color }} className={\
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