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 Working With Arrays

Timothy Stratton
Timothy Stratton
287 Points
Posted by Timothy Stratton
Timothy Stratton
287 Points

Assigning constant to index in array

How do I assign a constant to an index in an array? Or how do I just move on to the next challenge if I don't care about doing it precisely how Treehouse demands?

array.swift 
// Enter your code belowv
var arrayOfInts: [Int] = [1,2,3,4,5,6]

arrayOfInts.append(7)

var secondArrayOfInts = [1,2,3]

secondArrayOfInts += arrayOfInts

let two = secondArrayOfInts[4]

1 Answer

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

You assign a constant to the arrays index like the below. In this specific case it is asking you to return the 5th element in the array which is at position 4 because counting starts at 0

let value = arrayOfInts[4]