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iOS Swift Collections and Control Flow Introduction to Collections Working With Arrays

Posted by Shak Suso
Shak Suso
Courses Plus Student 683 Points

Guys what went wrong here

Challenge Task 4 of 4

For the last task, remove the 6th item from the array and assign the result to a constant named discardedValue.

To remove an item, use the method remove(at:) and put the index number in between parentheses that you want to remove.

array.swift 
// Enter your code below
var arrayOfInts: [Int] = [0,1,2,3,4,5]

arrayOfInts.append (6)

arrayOfInts = arrayOfInts + [7]

let value = arrayOfInts [4]

let discardedValue.remove(at: 5)
Matt Skelton
Matt Skelton
4,548 Points
Matt Skelton
Matt Skelton
4,548 Points

Hey Shak,

You're almost there! You just need to tweak the final line of code and you'll be done. Currently, you're trying to call the remove method on a variable that you've only just created, which will cause the compiler to throw a tantrum.

Instead, you want to call the remove method on your arrayOfInts, and assign the result to your discardedValue variable.

let discardedValue = arrayOfInts.remove(at: 5)

I hope that clears things up, good luck!

Shak Suso
Shak Suso
Courses Plus Student 683 Points

Thanks Matt it worked.