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iOS Swift Collections and Control Flow Control Flow With Loops Working With Loops

Could not be compiled HELP!


let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0

// Enter your code below

while (counter < numbers.count) 
sum += numbers[counter] 

3 Answers


The ++ operator has been removed in Swift3. Use +=. (counter+=1)

Hello Mark. Everything in your code seems to be correct except the increment operation.

Change: counter++ to counter += 1.

The reason is due to "++" being deprecated in Swift 3.

Thanks for help!?