When I don't know that Array.prototype.fill() is a thing https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fill …pic.twitter.com/ccF9V5eNXu
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happy to champion your spec proposal
I tried replicating this using d8 supplied by jsvu, yet only get the first line of the DebugPrint() result. Is this a release vs debug difference?
Yeah, you really do need a debug build: https://v8.dev/blog/elements-kinds#debugging … There's an open jsvu issue on adding support for builds binaries, but it's blocked on us providing such precompiled binaries:https://github.com/GoogleChromeLabs/jsvu/issues/27 …
Is this something that can be optimized by V8? I frequently see Array.prototype.fill patterns used this way.
It would be a lot of effort for relatively little gain (since we can still optimize HOLEY array operations). Tracking bug: https://bugs.chromium.org/p/v8/issues/detail?id=6892 …
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