tryfind : ('a -> 'b) -> 'a list -> 'b
Returns the result of the first successful application of a function to the elements of a list.
tryfind f [x1,...,xn] returns (f xi) for the first xi in the list for which application of f does not raise an exception. However, if Interrupt is raised in the course of some application of f xi, then tryfind f [x1,...,xn] raises Interrupt.
Fails if the application of f fails for all elements in the list. This will always be the case if the list is empty.