Dictionaries in Swift

As you may know in Swift arrays to read out a value, you can call it’s index value like so:

Instead of needing to remember the index value that is assigned to each value we can re-write this with a dictionary.

With dictionaries, instead of arbitrary numbers you have read and write values using a key you specify.

Let’s create a simple organized dictionary:

You can read into a dictionary like so:

You can see with dictionaries, you create it by writing it’s key, then a colon, then it’s value.

You can read any value from the dictionary you create by knowing the key.

Must easier to work with than remembering an index number don’t you think?