Abstract
When you write object-oriented programs, you’ll often want to add some new behavior to an existing class. For example, you might have designed a new kind of tire, so you’d subclass Tire and add the new, cool stuff. When you want to add behavior to an existing class, you often create a subclass.
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© 2015 Waqar Malik
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Malik, W. (2015). Extensions. In: Learn Swift 2 on the Mac. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-1627-9_14
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DOI: https://doi.org/10.1007/978-1-4842-1627-9_14
Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-1628-6
Online ISBN: 978-1-4842-1627-9
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