🧒 Explain like I'm 5
Imagine you're building a treehouse. Before you start, you need to know what kind of treehouse your friend wants. Otherwise, you might build something they don't like or can't use.
Interactive quiz
Check your understanding with an instant-feedback quick check.
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.
