@mathias Great talk. Thanks. Does a map on a packed HOLEY array return a PACKED or HOLEY?
e.g. Array(3).fill(1).map((_, i) => i) => [1,2,3] //HOLEY_ or _PACKED_
I brought up the `fill` case myself when I learned about elements kinds. Here’s the counter-argument: https://twitter.com/mathias/status/976531175060615169 … + https://twitter.com/mathias/status/976531391927078912 … It’s likely not worth the effort. That said, I’ll bring it up again once I get back to Munich. Thanks for your feedback!
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I agree that fill will not yield sufficient returns to be valuable. I don't use it that often and certainly not at a volume for it to matter. Map on the other hand, it is common and it's not going up the lattice it's starting out at a less than ideal place.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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