🧒 Explain like I'm 5
Imagine you're building a toy store checkout where kids can pay with different kinds of toy money. You need to make sure the checkout works smoothly, keeps the toy money safe, and looks good on any screen, like a tablet or a phone.
Interactive quiz
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Detailed notes
Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
Practice with AI feedback
Answer out loud, get scored on correctness, depth, and clarity.
