🧒 Explain like I'm 5
Imagine you have a remote control for your TV. You want to make sure you can do everything with the remote, like changing channels or adjusting the volume, without needing to touch the TV. That's like making sure a website works with just a keyboard.
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.