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

Brady Brown
Brady Brown
2,577 Points
Posted by Brady Brown
Brady Brown
2,577 Points

How to move past a challenge task?

Unsure how to move forward after all I see is "recheck work." I believe my code to be correct and ran it through Xcode to give me 43 as the sum.

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 {
      sum = sum + numbers[counter]
      ++counter
}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

I believe your code should pass the challenge. It does work. However, I tried one thing and ... what do you know? It passed the challenge. All I did was move the increment operator. Try this:

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

// Enter your code below
while counter < numbers.count {
      sum = sum + numbers[counter]
      counter++
}

The placement of the increment operator can affect certain situations, but not this one. So I don't know why the challenge is refusing your solution.

Brady Brown
Brady Brown
2,577 Points
Brady Brown
Brady Brown
2,577 Points

Thank you very much! Moving on now!