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 trialJohn Gilmer
Courses Plus Student 3,782 PointsI am confused on the last part
?
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count {
print("Works")
counter += 1
sum += numbers
}
1 Answer
István Halász
2,896 PointsHi John!
The problem in your code is that you are trying to add the whole array to the sum variable and not just an element of the array. Your code should look like this:
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
while counter < numbers.count {
sum += numbers[counter]
counter += 1
}
Within the while loop, you add the array's first value to the sum, because the counter is 0 and in arrays the first element is always marked with 0 then second is 1, the third is 2 and so on. So after you added the first element you need to update the counter to add the second element next time when you run the loop. I hope I could help with your problem!