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

fort ciprian
fort ciprian
1,234 Points
Posted by fort ciprian
fort ciprian
1,234 Points

I need some

I tried a lot of diferent methodes but its not working ..

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

// Enter your code below
while counter < 1 { counter += 1
}

2 Answers

Vladimir Ulyanov
Vladimir Ulyanov
14,023 Points
Vladimir Ulyanov
Vladimir Ulyanov
14,023 Points

Hey there,

At the moment, your code is saying:

"While counter is less than 1, add 1 to the counter."

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

// Enter your code below
while counter < 1 {  // While counter is less than 1, add 1 to the counter.
    counter += 1 
}

What you want your code to say is:

"While counter is less than the length of of the numbers array, add 1 to the counter"

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

// Enter your code below
while counter < numbers.count { // While counter is less than the length of of the numbers array, add 1 to the counter
    counter += 1 
}
Alex Armstrong
Alex Armstrong
2,420 Points
Alex Armstrong
Alex Armstrong
2,420 Points

Make sure that you compare it to the length of the numbers array.

fort ciprian
fort ciprian
1,234 Points
fort ciprian
fort ciprian
1,234 Points

i still don't get it. you can be more explicite please..