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iOS Swift 2.0 Collections and Control Flow Control Flow With Loops Working with Loops

Geovanny Reyes
Geovanny Reyes
3,876 Points
Posted by Geovanny Reyes
Geovanny Reyes
3,876 Points

Does anyone know how to do the Step 2 of this exercise. I'm not sure where to begin. thank you

I am not sure where to begin for the step 2

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

// Enter your code below

var index = 0

while index < numbers.count{
    print(numbers[index])
    index++
}

var counter = [numbers.count]
var sum = sum + counter

1 Answer

jcorum
jcorum
71,830 Points

You don't need to create another variable index, as they provide counter for you. Nor do you need to print, as that wasn't asked for. Remember, the editor is a bit picky. You need to do only what is asked or it's likely to complain. You also don't want to declare the same variable twice (var counter, var sum).

// Enter your code below
while counter < numbers.count {
    sum += numbers[counter]
    counter++
}
Geovanny Reyes
Geovanny Reyes
3,876 Points
Geovanny Reyes
Geovanny Reyes
3,876 Points

Awesome. Thank you very much Sir!