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 Introduction to Collections Inserting and Deleting Values

the code challenge isn't working

it isn't saying wrong answer, it just isn't working.

3 Answers

I just tested it and its working fine.

// Enter your code below

//Set your array of Ints
var arrayOfInts = [2,4,6,8,10,12]

//Append an Int to the array

//Concatenate an In to the array
arrayOfInts + [16]

//Retrieve the 5th Int and assign to a constant
let value = arrayOfInts[4]
 var arrayOfInts = [1,2,3,4,5,6]
 arrayOfInts += [8]

 let value = arrayOfInts[4]
 let discardedValue = arrayOfInts.remove(at: 5)
Gio Rinaldi
Gio Rinaldi
Courses Plus Student 4,091 Points

//Concatenate an In to the array arrayOfInts + [16]

It will work if you do:

arrayOfInts += [16]