Re: argument ordering (was: Re: Priority Queues, or lack thereof)

This style supports multiple operations nicely, especially with combined with the $ operator.

But note that the version with $ is actually longer than the one with nested parens! And where the operands are not statically known, the different orderings do simply come down to foldl/foldr preference:

insert 1 $ insert 2 $ insert 3 $ someSet

== foldr insert someSet [1,2,3]

insert (insert (insert someSet 3) 2) 1

== foldl insert someSet [3,2,1] In some sense the foldl variant is more 'obvious' about the order in which elements are actually inserted. Regards, Malcolm