Struggling with while loops...

Hi there, Mike! Let's try with some pseudocode and see if you can get the syntax down. Although, I'd be interested to know what you've tried so far so as to optimise the learning experience for you.

while the counter is less than the number of elements in the numbers array
    add the number in the array that's at the same index as counter to the total sum
    increment the counter
end while

Hope this helps, but let me know if you're still stuck!

Thanks Jennifer - I got this far, not sure if it's the right direction or not, but it's blowing out in Playgrounds

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

// Enter your code below

while counter < numbers.count {
    sum.append = numbers

}

Hi there! You're not quite there yet. Remember, we use append when we want to append to an array. But sum isn't an array. It's just a plain old integer. Also, we don't want to append anything to our numbers array, it should stay as it is. What we're attempting to do here is go through that entire array and add up all the numbers in it.

However, the while part that you have is spot on! It's the inside code that's not doing what you think it should. I'm going to post my solution with comments to explain:

while counter < numbers.count { //while the counter is less than the number of items in the numbers array
    sum += numbers[counter] //get the number at the index equal to counter.  The first iteration will get number[0] which is 2 etc
    counter += 1 // increment the counter.  The next iteration the counter will be 1
}

Hope this helps!