KeyValueObservedChange

public struct KeyValueObservedChange<Value> where Value : Decodable, Value : Encodable

Undocumented

  • Undocumented

    Declaration

    Swift

    public typealias Kind = NSKeyValueChange

  • Undocumented

    Declaration

    Swift

    public let kind: KeyValueObservedChange<Value>.Kind

  • newValue and oldValue will only be non-nil if .new/.old is passed to observe(). In general, get the most up to date value by accessing it directly on the observed object instead.

    Declaration

    Swift

    public let newValue: Value?

  • Undocumented

    Declaration

    Swift

    public let oldValue: Value?

  • indexes will be nil unless the observed KeyPath refers to an ordered to-many property

    Declaration

    Swift

    public let indexes: IndexSet?

  • ‘isPrior’ will be true if this change observation is being sent before the change happens, due to .prior being passed to observe()

    Declaration

    Swift

    public let isPrior: Bool