**EXTENSION** # `Binding` ```swift public extension Binding where Value: Equatable ``` ## Methods ### `onChange(_:)` ```swift func onChange(_ action: @escaping (Value) -> Void) -> Self ``` ``` Toggle( "Foo", isOn: $foo.onChange { bar.isEnabled = $0 } ) ``` #### Parameters | Name | Description | | ---- | ----------- | | action | Action to run |