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

Posted by Carl Smith
Carl Smith
8,185 Points

Not understanding how to retrieve the values and add to the variable

Not sure how this is supposed to be done.

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

while counter < numbers.count {
   sum = (counter++)
}

var newValue = counter

sum = (sum + newValue)

1 Answer

jcorum
jcorum
71,830 Points

Your loop is fine, but you need to sum up the numbers in the array, and increment counter each time through the loop:

while counter < numbers.count {
   sum += numbers[counter]
   counter++
}
Carl Smith
Carl Smith
8,185 Points

Thank you, I kept getting errors when I ran it in Xcode that displayed no informational value.