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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Build a Quiz Challenge, Part 1

You Ni
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You Ni
Courses Plus Student 2,397 Points

Why my code isn't work?

My code keep showing the sing error like this

Uncaught TypeError: Cannot read property '0' of undefined at quiz.js:43

why~?

https://w.trhou.se/91sh0pq57r

1 Answer

The length of qss is 3. But the indexing goes from 0 to 2. So your for loop should not include = qss.length. It should just be:

for(var i = 0 ; i < qss.length ; i++)