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iOS Swift 2.0 Collections and Control Flow Introduction to Collections Working with Arrays

Posted by augustine makachemu
augustine makachemu
2,058 Points

I'm wondering how to do the concatenation of the strings. Please help me.

I have completed the first step but the concatenation is wrong. Please tell me what I need to do to fix it.

arrays.swift 
// Enter your code below
var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
var arrayOfInts.append = arrayOfInts.append + arrayOfInts

4 Answers

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

augustine, you use concatenation in lieu of append, not in addition:

var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts = arrayOfInts + [8]
erik Jones Oniga
erik Jones Oniga
3,307 Points
erik Jones Oniga
erik Jones Oniga
3,307 Points

that's not working

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

Erik, my answer wasn't for the entire challenge. Just the first part -- the part augustine was having a problem with.

Here's the rest, if you need it:

var arrayOfInts = [1,2,3,4,5,6]
arrayOfInts.append(7)
arrayOfInts = arrayOfInts + [8]
let value = arrayOfInts[4]
let discardedValue = arrayOfInts.removeAtIndex(5)
erik Jones Oniga
erik Jones Oniga
3,307 Points
erik Jones Oniga
erik Jones Oniga
3,307 Points

ups, my bad. Thanks by the way:)