Beginner
Fix the +3 button
The +3 button (id="add3") is supposed to add 3 points by calling the setter three times, but each click adds only 1. The score is shown in id="score".
Fix it without changing it to a single setScore(score + 3): keep the three setter calls and make each one build on the previous one.
What Check tests
- The score starts at
0 - One click shows
3 - A second click shows
6 - It still calls the setter three times, with updater functions
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