Capstone: demo, review, and next version
Complete the path with a real demo, evidence checklist, and tradeoff review.
- Difficulty
- beginner
- Time
- 90 minutes
- Last verified
- 9/21/2026
What you will build
Complete the path with a real demo, evidence checklist, and tradeoff review.
Understand the idea first
Complete the path with a real demo, evidence checklist, and tradeoff review.
Build it step by step
演示：首次进入 → 添加 → 完成 → 筛选 → 刷新保留 → API 失败后恢复
证据：提交 / 公开 URL / 测试记录 / 反馈 / 已知限制- Open the previous project and record its result.
- Type the example and complete: Observe the full demo without coaching, then choose only three high-value issues for V2.
- Change one input, predict, then verify.
- Create and repair: Completion means a stable core task, transparent limits, and evidence-based next steps.
Read the important lines
- Complete the path with a real demo, evidence checklist, and tradeoff review.
- Read input, processing, and output separately.
- Verify another input and an edge case.
Common mistakes and what to check
| Symptom | What to check |
|---|---|
| Unexpected result | Completion means a stable core task, transparent limits, and evidence-based next steps. |
| Nothing changes | Save, verify paths, and read the first relevant Console error. |
Practice without copying
Observe the full demo without coaching, then choose only three high-value issues for V2.
Check the answer after you try
Rebuild and explain the decisions. Check: Completion means a stable core task, transparent limits, and evidence-based next steps.
Completion check
- I produced the required visible result
- I can explain the input, processing, and output
- I tested normal, edge, and failure cases