The Prototype Pattern in Swift
Clone it!
When you copy Swift objects you would need to be careful that all of the constituent layers of the class are all copied. Don’t worry — we can do that in Swift using NSCopy()
, and to do so let us look at the article below.
Prerequisites:
* You will be expected to be aware how to make a Single View Application in Swift.
Terminology:
Design Pattern: a general, reusable solution to a commonly occurring problem
The prototype pattern: a creational pattern that deals with object creation mechanisms, aiming to create objects in a manner suitable to the situation
The prototype pattern
When you use the prototype pattern you don’t need to subclass, and can configure clones individually.
The Prototype Pattern is known as a creational pattern, as it deals with object creation mechanisms, aiming to create objects in a manner suitable to the situation.
In Swift, this pattern is commonly implemented using the NSCopying
protocol to create a copy of an existing instance. It is beneficial when you want to create a new object with properties that match an existing object.