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 trialCamille Grant
Courses Plus Student 463 PointsSorry to be annoying. I found that asking questions was highly helpful and I thank this community. How can I do this?
I am very confused. What is an index value? I mean, I know what it is, but how do I use it in this instance
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count {
counter += 1
sum += counter
}
1 Answer
Jeff McDivitt
23,970 PointsHi Camille - Lets break this one down to assist you in understanding
You have task 1 correct! Great Job! In the second task you use the value of counter as an index value, retrieve each value from the array and add to the sum variable that was provided to us. Let me know if this still does not make sense. It may also be helpful to put this in playgrounds so you can view what is returned. Happy Coding :)
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
}