On Wednesday, 29 October 2014 at 06:59:09 UTC, bearophile wrote:
This is very false. I have tons of cases where you only iterate
on values or keys. On the other hand I have suggested several
times that I'd like a byPairs (that yields keys-values tuple
pairs).
It happens to me too but it's very much a minority of uses.
Having sets as well as maps would help replace some of these
cases. Not all, of course.
Doing byKey requires you to do a
lookup to get the corresponding value which just takes up
cycles
unnecessarily.
Usually people use a "AA.byKey.zip(AA.byValue)" that is not
reliable.
Better than doing key lookups on every iteration but awfully ugly
and should be unnecessary. byPairs sounds good.
