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

Boris Davidovic
Boris Davidovic
1,010 Points
Posted by Boris Davidovic
Boris Davidovic
1,010 Points

arrayOfInts

can someone help me out with arrayOfInts problem? i would like to know the solution to this one and explained please.

array.swift 
// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts += [8]
arrayOfInts.remove(at: 4)
let value = 5

2 Answers

Boris Davidovic
Boris Davidovic
1,010 Points
Boris Davidovic
Boris Davidovic
1,010 Points

solved it after 2 mins and reading the problem again.

RESULT :

var arrayOfInts = [1,2,3,4,5,6] arrayOfInts.append(7) arrayOfInts += [8] arrayOfInts [4] = 5 let value = 5

thanks ! good luck !

andren
andren
28,558 Points
andren
andren
28,558 Points

The solution for task 3 is as follows:

let value = arrayOfInts[4] // You retrieve a value by passing in the index you want to retrieve within brackets

The task did not ask you to remove anything at index 4, but to retrieve it. The easiest way to retrieve a value from an array is by using bracket notation where you simply pass the index you want to retrieve within brackets following the name of the array.

Do note that this is only the solution to task 3, not to the entire challenge.