React Essentials · Props & State · Lesson 7 of 26
Conditional Rendering
Concept
Conditional Rendering
Use if statements, ternaries, or && inside JSX to show different UI depending on the current state.
By the end of this lesson
- Explain the core idea behind Conditional Rendering.
- 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. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Conditional Rendering. 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
Render a "Loading..." message only while a loading state is true.
Loading editor…
Console