controlling sparseness of Array iterators (was: Array#filter without callback function)

Erik Arvidsson erik.arvidsson at
Mon Nov 12 15:03:07 PST 2012

On Mon, Nov 12, 2012 at 5:39 PM, Allen Wirfs-Brock <allen at>wrote:

> So the question on the floor:  is there any interest in having this
> variation of array iteration in ES6?

I would prefer not. Sparse arrays are really rare and for the few cases
these are used I expect the author to be willing to pay a little bit extra
instead of everyone else having to pay for these rare cases.

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