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1 point by absz 6130 days ago | link | parent

That's not quite true, though. As I pointed out below (http://arclanguage.org/item?id=4704), you can set up map so that you could write

  (def dotprod (xs ys)
    (apply + (map xs ys *)))
Now, I'd rather have map stay as it is, as I've said. One should have fmap for "flipped map" which does this, and it may or may not belong in the core. After all, (map f xs) does read better than (map xs f). But even so, it is doable.

EDIT: The more I look at this, the more wrong it looks. I'm even more inclined against this; even if we have it, it shouldn't be called something so similar to map.