Roadmap Week 4 step intro
Day 22 · Backend 35 min 40 XP
🖥️How backends work
The back-end is the brain behind the scenes: it stores data, enforces rules, and keeps secrets safe.
What you'll learn
- Explain what a server does
- Understand APIs at a high level
- Know why backends exist
A peek inside
Why you can't do it all on the front-end
The rest of Day 22 is a Pro lesson
You're on the free Explorer plan — you get the intro and the video. Go Pro to open the full guided lesson (and all 30 days).
- 2 deep-dive lessons
- 3 hands-on practice tasks
- 3 quick-glance glossary cards
- 40 XP + streak tracking
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