increment variable in while loop

Question

Hi, I am being asked to construct a while loop that iterates over the elements of the "numbers" array, and increments the "counter" variable within the body of the loop. (This is the first step, so I haven't been asked to do anything else yet in the body of the loop. )
However, the system will not accept this. I've tried it every way I can think of, and can't figure out what I'm doing wrong. Thank you!
```while.swift
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count {
    counter += 1
}
```

Jennifer Nordell · Accepted Answer

I don't know why this won't pass to be perfectly honest.  But if I take your code and change the counter increment just slightly... it passes.  Clearly they're looking for the increment operator even though they don't explicitly say so.  Take a look:
```swift
while counter < numbers.count {
    counter++
}
```

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Darcy Phillips

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increment variable in while loop

1 Answer

Jennifer Nordell

Jennifer Nordell

Darcy Phillips

Darcy Phillips