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Start your free trialFrancis Williams
678 Pointskeep getting this error " ++ is unavailable: it has been removed from swift 3
while(counter < numbers.count){ sum += numbers[counter] counter++
keep getting the error "++ is unavailable
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
sum += numbers[counter]
counter++
}
2 Answers
wwyattw
10,389 PointsI wondered about the same also but then I found this, https://stackoverflow.com/questions/35158422/the-and-operators-have-been-deprecated-xcode-7-3
andren
28,558 PointsThat message is accurate. The ++ operator was removed in Swift 3, and since you use it in the last line of your loop your code won't run. You don't really need that line though as you are already increment counter
with += 1
at the top of the loop which is a valid way of increment in Swift 3.
You shouldn't increment it at the start of the loop though, but at the end, since counter
is used to pull items out of the numbers array.
If you remove your last line and move the first line down like this:
while counter < numbers.count {
sum += numbers[counter]
counter += 1
}
Then your code will work perfectly fine.