On Mon, Nov 26, 2018 at 02:06:52PM -0800, Michael Selik wrote:
> If you know the input is sizeable, why not check its length instead of the
> map's?

The consumer of map may not be the producer of map.

You might know that alist supports len(), but by the time I see it, I 
only see map(f, alist), not alist itself.


-- 
Steve
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