Make App Pie
Training and Instructional Design
Tag: Optional Values
A Swift Tutorial for Working with Classes Part 3: Abstract classes.
In the first tutorial in this series we introduced classes. In the second we did some more advanced manipulations of classes. In both, we discussed the idea of inheritance, which has one final possibility: a class whose only purpose is to define other classes.… Continue Reading “A Swift Tutorial for Working with Classes Part 3: Abstract classes.”
The Swift Swift Tutorial: Using Dictionaries and Optional Types
[Updated for Swift 2.0/iOS9 9/10/2015 – SJL ] In our last lesson, The PizzaDemo App so far told us some information about pizza sizes. What would be nice is for it to tell us the price for a pizza, based on the area of… Continue Reading “The Swift Swift Tutorial: Using Dictionaries and Optional Types”
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