Choose Your Level
Pick the difficulty that matches where you are. You can come back and try a harder level later.
Beginner
Build a Basic Shopping Cart UI
Create a static shopping cart that calculates totals using React state.
1 to 2 hours 4 criteria
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Intermediate
Persist Cart to LocalStorage
Ensure users do not lose their cart when they refresh the page.
2 to 4 hours 4 criteria
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Advanced
Backend Sync & Stock Validation
Build a production-grade cart that handles server validation and race conditions.
4 to 6 hours 4 criteria
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