for loop - Swift Functional with Array and a Guard ... Possible?

Question

Trying to make this common swift pattern more functional.

for object in objects.allObjects {
    guard let _object = object as? SomeTypeOfObject else { continue }
    _object.subObject(subObject, objectStateChanged: changedState)
}

1. I'd love to use something like "any" (instead of map) to get rid of the for loop - like in Kotlin - but that dose not seem to be possible in Swift.

2. Trying to figure out a way to include the guard in the functional representation of this block.

Feels like I'm missing something. Am I?

Thanks

Answer 1

A common functional pattern is to compactMap and then call the method with side-effect in a forEach. This eliminates the guard entirely:

objects.allObjects                           // Add `.lazy` if you don’t want to build the intermediary array
    .compactMap { $0 as? SomeTypeOfObject }
    .forEach { $0.subObject(subObject, objectStateChanged: changedState) }