🧒 Explain like I'm 5
=== Question: "Are these two identical?" While == is more lenient: "Just transform them to make them similar and then compare" — and this arbitrary transformation can lead to unpredictable and bizarre results.
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.
