Property Observers (WillSet & DidSet) - Swift 5
In this video, we go over the 2 computed properties in Swift: WillSet and DidSet. Here's the notes from the video:
Property Observers:
respond to changes in property’s value
willSet - called BEFORE new value is stored
use “newValue” in references and calculations
didSet - called immediately AFTER new value is stored
use “oldValue” in references and calculations
Both: can add custom parameter using parentheses after call (ex. willSet(heyyyy))
Download the source code (with added notes) here - https://github.com/mgm720/PropertyObs...
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