subscript(_:)
Reads and writes values associated with a given focused value key.
Declaration
subscript<Key>(key: Key.Type) -> Key.Value? where Key : FocusedValueKey { get set }Overview
Use this subscript to get or set a focused value for a custom FocusedValueKey. In most cases, you’ll use the Entry macro to create focused value properties, which automatically generates the appropriate key and uses this subscript internally:
extension FocusedValues {
@Entry var myCustomValue: MyType?
}