having some trouble here

Question

Much appreciated

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 {
  counter++
}

sum +=

Answer 1 · 2016-03-19T22:52:49Z

March 19, 2016 10:52pm

Hi Manny,

I found two issues in the code sample you provided:

The sum statement is sitting outside of the scope of the while loop, so it is only executed once. Assuming you want sum to be changed each time the loop runs, it should be contained inside the loop.
The sum += expression is missing whatever value you'd like to add. Assuming you want to add the value of each item in the numbers array, you can use subscript syntax with the variable counter as the item index.

Here's a code sample that resolves both issues and compiles successfully:

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

I hope this helps!

Answer 2 · 2016-03-19T22:44:51Z

March 19, 2016 10:44pm

Just want to mark this case as answered. David has a perfect answer here, but he just put it in as a comment!

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