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Roadmap
Day 18 ยท React 35 min 40 XP

๐Ÿ“‹Lists & keys

Rendering lists is everywhere in React. The trick is map plus a unique key.

What you'll learn

  • Render arrays with map
  • Add stable keys
  • Render list data cleanly
Week 3 step intro

A peek inside

map returns JSX

The rest of Day 18 is a Pro lesson

You're on the free Explorer plan โ€” you get the intro and the video. Go Pro to open the full guided lesson (and all 30 days).

  • 2 deep-dive lessons
  • A copy-paste worked example
  • 3 hands-on practice tasks
  • 2 quick-glance glossary cards
  • 40 XP + streak tracking
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