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

Arrays with numbers

Not sure why this isn't working? Challenge Task 2 of 4

Now that we have an array declared, since it is a mutable array, we can add and remove items. Let's start by adding two more values to our existing array. There are two ways we can add items to an array and I want you to give both a try. Add one item to the array using the append method.

Remember: We invoke methods on an array using a period or dot. After the dot we write out the method name and a value to append in parentheses following the name.

Add another item to the array by concatenating an array. When concatenating, assign the results of the expression back to arrayOfInts. /Users/mattconway/Desktop/Screen Shot 2016-01-09 at 1.04.01 PM.png

// Enter your code below
var arrayOfInts = [1, 2, 3, 4, 5, 6]
arrayOfInts += (7,8)

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points


Using the .append() method will only allow you to add one item at a time, so if you want to use the append, you will have to call that method twice.

Good luck