Can I re-run a CodeLab exercise?

Yes. You can re-run any CodeLab exercise as many times as you’d like to try different solutions or refine your approach. There is no limit on how many attempts you can make.

What gets saved

Your completion status is saved once you successfully finish a challenge. This lets you track which labs you’ve completed across your modules.

What does not persist

Your code input does not persist between attempts. Refreshing the page resets your editor to the default starter code, giving you a clean slate each time.

• Your final answer is not saved.
• Your editor resets to the starter template when reloaded.
• You can run the challenge repeatedly without any restrictions.

This setup encourages experimentation and helps you build confidence through repeated practice without affecting your saved progress.