javascriptType errorEasy

Counting positives crashes on the first one

Time: 0:00

BugFind the bug and fix the code

What it should do

countPositives(nums) counts the numbers above zero. Example: countPositives([3, -1, 4]) → 2.

What happens instead

countPositives([3, -1, 4]) throws TypeError: Assignment to constant variable.

Hints

This is a type errors bug

Totals that concatenate, sorts that put 10 before 9, comparisons that refuse to run.

Learn the type errors pattern Step through your own code

Spoiler: why this bug happens(try it first; the hints get warmer one at a time)

What went wrong: const means the value can never change. count++ tries to change it.

The fix: let count = 0;

Remember: use let for values that change, like counters and totals.

The pattern behind it: type errors.

More type errors to practise

Seen this error in your own code?

TypeError: Assignment to constant variable.

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