Interview-focused playbook

This site is optimized for interviews, not documentation. Every serious topic should answer the same questions an interviewer is silently scoring.

Universal article / answer structure

1. Overview — one sentence + scope.
2. Why interviewers ask — skill signal.
3. What they evaluate — checklist.
4. Level expectations — Junior → Principal.
5. Expected answer shape — the arc to hit.
6. Key concepts / solution — diagrams + steps.
7. Follow-ups — timed probes.
8. Common mistakes — fail patterns.
9. Production examples — Google/Netflix/Uber/Amazon…
10. Best practices & when NOT to use.
11. Summary + practice + related next topics.

Where this lives on the site

• Coding Lab — each question enriched with the structure above
• System Design Lab — same
• AI Lab — same
• Comparisons — tradeoff articles
• Learning paths — role roadmaps
• Cheat sheets — last-minute flashcards
• Company guides
• Behavioral / HR / resume

Difficulty & time

Cards and guides show difficulty, rehearsal minutes, and mastery estimates. Use them to plan sprints — not to read passively.