Select Answer
Allow one option selection.
40% track progress
📂 Step 1 — Open the Project for This Track
Open this folder in VS Code or your editor:
tracks/angular/final-project/
Open Final Project Folder📄 Step 2 — Files to Edit
For this track, these are the important files:
📄 src/app/components/quiz/quiz.component.ts📄 src/app/components/quiz/quiz.component.html📄 src/app/services/quiz.service.ts📄 src/assets/data/questions.json
Start with the yellow file, then update the others only when the task asks you to.
🎯 Step 3 — Learning Objective
Students learn state and event handling.
🔨 Step 4 — Fully Defined Student Task
What to build
- Add a selectedAnswer variable/state.
- When an option is clicked/tapped, save that option.
- Visually highlight the selected option.
- Prevent accidental multiple visual selections.
- Do not check correctness yet unless this milestone is combined with the next one.
Acceptance Criteria
- Clicking an option highlights it.
- Only one option is selected at a time.
- The selected value is stored in code.
- The app does not crash when options are clicked repeatedly.
What to submit to the teacher
- Screenshot with selected option.
- Explain where selected answer is stored.
Do not move ahead until
- The project runs without errors.
- You can explain which files changed.
- The acceptance criteria above are satisfied.
▶ Step 5 — Run the Project
Use this command or method:
Create an Angular app, then copy the src files from tracks/angular/final-project/src/. ng serve
✅ Step 6 — Checkpoint Output
KBC Quiz
Select Answer should now work.
A. Sample optionB. Sample optionC. Sample optionD. Sample option🧠 Step 7 — Mini Quiz
- What exact feature did this milestone add?
- Which file changed the most and why?
- Which acceptance criterion proves the work is complete?
🆘 Full Code Fallback
👀 View / Copy Complete Help
Open this only after trying.
// Milestone 06: Select Answer
// Open: tracks/angular/final-project/
// Complete every item under "What to build".
// Test every item under "Acceptance Criteria".Add a selectedAnswer variable/state.
When an option is clicked/tapped, save that option.
Visually highlight the selected option.
Prevent accidental multiple visual selections.
Do not check correctness yet unless this milestone is combined with the next one.Ask the student to demonstrate the running output, then ask which file changed and why.🌐 GitHub Commit
After the milestone works, commit it:
git add . git commit -m "Complete Angular milestone 06: Select Answer" git push