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

Akbar Khatibi
Akbar Khatibi
8,137 Points
Posted by Akbar Khatibi
Akbar Khatibi
8,137 Points

Step 1: Create a while loop. The while loop should continue as long as the value of counter is less than the number of i

I'm lost on how to do this. Can someone help please?

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 += numbers[counter]
  counter += 1
}

1 Answer

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

Your code should work. Straight up. However, when I try it it fails the challenge. Clearly they're looking for the increment operator and I don't know why. When I change it to counter++ it passes the challenge. Give it a go!

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]
    counter++
}