Reading the prompt: mapping interview signals to techniques
Interview problems are patterns in disguise. Learn the words and shapes that give the pattern away, and most questions stop being a search and become a lookup.
Long-form guides on the ideas behind the interview questions — the mental models and problem-solving methods that turn memorised answers into understanding you can reason from under pressure. Each one is original, links back to the questions it explains, and cites its sources.
Interview problems are patterns in disguise. Learn the words and shapes that give the pattern away, and most questions stop being a search and become a lookup.
A repeatable method for the algorithm round: clarify, state the brute force, name the pattern, code cleanly, dry-run. What to say out loud at each step, and the mistakes that quietly cost you the offer.
Why functions remember where they were born, and how that single fact explains private state, the classic loop bug, and half the JavaScript trick questions you will be asked.