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React Essentials · Props & State · Lesson 4 of 26

Passing Props

Concept

Passing Props

Props are how you pass data from a parent component into a child, similar to function arguments.

By the end of this lesson
  • Explain the core idea behind Passing Props.
  • Predict output before running a change.
  • Test one realistic and one unusual input.
  • Use the result to make the next decision.
How to study this page
  1. 1. Read one concept.
  2. 2. Change the example.
  3. 3. Run, compare, and explain.
  4. 4. Complete the challenge below.
ExampleRunnable
function Greeting({ name }) {
  return <p>Hi, {name}!</p>;
}

<Greeting name="Alex" />;
Try it Yourself »
Self-check before continuing

Without looking at the example, describe what changes when you modify one input in Passing Props. Then reopen the editor and prove your explanation with a small test.

You are ready to continue when you can predict, test, and explain the result.

Your turn

Create a Card component that accepts a title prop and displays it.

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Console

Output will appear here...