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

Em Har
Em Har
9,775 Points

Array of Int

Can someone walk with me on this one?

array.swift
// Enter your code below

var arrayOfInts: [Int] = [1,2,3,4,5,6]

arrayOfInts + [7]
arrayOfInts.append(8)

arrayOfInts[4] 

let value = [4]

1 Answer

Shlomi Bittan
Shlomi Bittan
6,718 Points

Hi Emil, These are the steps you need to follow:

First, create an array of ints with 6 numbers:

var arrayOfInts: [Int] = [1,2,3,4,5,6]

Second, add an item via the append method:

arrayOfInts.append(7)

Third, add an item using concatenation, and assign back the result:

arrayOfInts = arrayOfInts + [8]

And finally, assigne the 5th item to a constant value.

Retrieve the 5th item (remember array indexes start at 0) and assign the result to a constant named value.

let value = arrayOfInts[4]