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
Derrick Rodriguez
490 PointsHaving trouble understanding when it tells me to set a condition that will eventually terminate please help thank you!
Swift 2.0 Collections and Control flow
This one might be a bit tricky so let's take it in steps. We have an array of numbers, nothing tricky, you've seen this before. What we want is to compute the sum of the numbers in the array. To do this we're going to use a while loop.
We have a variable ,sum, that will store the value of the sum of numbers from the array.
We also have a variable ,counter, which we will use to track the number of iterations of the while loop.
Step 1: Create a while loop. The while loop should continue as long as the value of counter is less than the number of items in the array. (Hint: You can get that number by using the count property)
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
var list = 0
while list < number.count
{
print(number[list])
list++
}
3 Answers
Jari Koopman
Python Web Development Techdegree Graduate 29,349 PointsHi Derrick,
You are making your answer to complicated. At first, you don't need the print statement, and second you can just use the counter property instead of making a new one called list. Your code can look something like this:
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count
{
counter++
}
Hope this helped!
Regards, Jari
Derrick Rodriguez
490 PointsHey Jari thanks for the reply but I'm still seeing this when I try entering your suggestion.."Ensure that you provide the while loop with a condition that eventually terminates"..any ideas?
Jari Koopman
Python Web Development Techdegree Graduate 29,349 PointsI accidentally put number.count instead of numbers.count, if you change that it should work!
Sorry!
Regards, Jari
Derrick Rodriguez
490 PointsAh I should've seen that too thanks again really appreciate it!