On Sat, 2011-08-20 at 01:27 +0800, Just Fill Bugs wrote:
> Should there be max/min methods or properties for collections?
For SortedSet/SortedMap you have .first()/.last() methods which gives
you the maximum/minimum element.
For lists and similar data structures you can implement it by folds:
Collection<int> list = new List<int>(...);
...
int? max = list.fold<int?>((a, b) => {
return b == null? a : int.max(a, b);
}, null);
Alternatively:
int? max = null;
list.foreach ((a) => {
max = max == null ? a : int.max(a, max);
});
// max is null if list is empty or contains maximum
Regards
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