React Essentials · Routing Basics · Lesson 23 of 26
Dynamic Routes with useParams
Concept
Dynamic Routes with useParams
A route like /courses/:id captures part of the URL as a parameter, which useParams reads inside the matched component.
By the end of this lesson
- Explain the core idea behind Dynamic Routes with useParams.
- 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 Dynamic Routes with useParams. 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
Set up a dynamic route /users/:username and read the username with useParams.
Need a nudge?
Ask about this lesson or your next move. The guide explains the path without taking the work away from you.
Ready for the next lesson?
Mark this lesson complete when you have finished the exercise.
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