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 2.0 Collections and Control Flow Introduction to Collections Working with Arrays

Haitham Alam
Haitham Alam
2,685 Points
Posted by Haitham Alam
Haitham Alam
2,685 Points

Hello what's the correct answer??

Please I need to know why my code is not right?

arrays.swift 
var arrayOfInts = [1, 2, 3, 4, 5, 6]

arrayOfInts.append(7)

arrayOfInts += [8]

arrayOfInts.count

arrayOfInts = [1, 2, 3, 4, 5, 6, 7, 8]

let value = arrayOfInts[4]

arrayOfInts.removeAtIndex(5)

let discardedValue = arrayOfInts

2 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points
Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey there,

you almost got it right and you already used the removeAtIndex method on the arrayOfInts array correctly and you created the discardedValue constant. Now just combine those two things and save the value you remove from the array into the discardedValue constant.

Like so:

// Enter your code below
var arrayOfInts = [1, 2, 3, 4, 5, 6]
arrayOfInts.append(7)
arrayOfInts += [8]
let value = arrayOfInts[4]
let discardedValue = arrayOfInts.removeAtIndex(5)

I hope that helps, good luck! :)

Haitham Alam
Haitham Alam
2,685 Points
Haitham Alam
Haitham Alam
2,685 Points

thank you man. you are great