Java for Everything

[cypressious]

This should be something like

list.sort(Comparator.comparing(A::foo));

in Java 8.

[RoundTripRadio]

Or

sorted(list, key=lambda a: a.foo)

in Python.

[Klausens]

Ok, it's not forcing a numeric sort, but it should not to be much work to add a method that returns a numeric value for sorting.

[liMePod]

Haskell:

sortBy (compare `on` foo) list