Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Herman Ruswanto
Herman Ruswanto
484 Points

Retrieving values from the array inside the while loop to compute the sum (Challenge Task 2 of 2)

Hi.. How to compute the sum ?

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

while counter < numbers.count {
  print(numbers)
  counter += 1
}

// Enter your code below

sum += newValue

1 Answer

Herman Ruswanto
Herman Ruswanto
484 Points
Herman Ruswanto
Herman Ruswanto
484 Points

I think the answer is :

while counter < numbers.count { sum += numbers[counter] counter += 1 }