Swift 4 for Absolute Beginners by Stefan Kaczmarek Brad Lees & Gary Bennett

Author:Stefan Kaczmarek, Brad Lees & Gary Bennett
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

Now the dictionary will contain only firstName and lastName. Remember that dictionaries are not ordered. You cannot rely on the order, but there will be times when you need to iterate over a dictionary. This is done in a manner similar to arrays. The main difference is that in an array, you assign one variable, while in a dictionary , you need to assign the key and the value. See Listing 8-7.

1 var person: [String: String] = ["firstName": "John", "lastName": "Doe"]

2 for (myKey, myValue) in person {

3 print(myKey + ": " + myValue)

4 }

Listing 8-7.Iterating over a dictionary

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