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DevSprint

The JavaScript sprint — 20 questions, 3 lives, 20 seconds each.

Daily challenge

Map vs Object — which has an O(1) `.size`?

  • 20s per question — correct answers earn a 2s bonus
  • Streaks multiply your points (up to x5)
  • 3 lives. Wrong answer or timeout — you lose one
  • Score 80%+ to unlock referral opportunities

Leaderboard

Answer with 1–4 or A–D. Good luck!

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