Swift Programming: The Big Nerd Ranch Guide, 3rd Edition

Accessing and Modifying Arrays

So, you have a bucket list? Great! Sadly, you do not have many ambitions in it yet. But you are an interesting person with a zest for life, so let’s add some values to your bucketList. Update your list with another ambition.

Example 8.6. Reading the classics

var bucketList = ["Climb Mt. Everest"]                     ["Climb Mt. Everest"]
bucketList.append("Read War and Peace")                    ["Climb Mt. Everest", "...

You are using append(_:) to add a value to bucketList. The append(_:) method takes an argument of whatever type an array accepts and makes it a new element in the array. Arguments are data given to a method for it to work with; you will learn more about them in Chapter 12, Functions.

The sidebar shows the value of bucketList