IntUnaryFunction
class IntUnaryFunction<A, OA : ObservableValue<A>>(argA: OA, lambda: (A) -> Int) : UnaryFunction<Int, A, OA> , ObservableInt
Boilerplate which avoids having to use generics. An ObservableInt which is calculated from 1 (unary) other ObservableValue.
See UnaryFunction (PropertyFunctions).