@WalterEllisFun Pretty cool
Want to learn something about V8 internals? @camillobruni explains how V8 stores and optimizes properties: https://v8project.blogspot.com/2017/08/fast-properties.html …
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks for the great article! I think I found a typo here (or, perhaps, I just don't get something).
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Hi Alex. Can you give more details?
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sparseArray[1 << 20] = "foo"; will give us an array with 1048577 elements. Perhaps it should be sparceArray[9999] = "foo"
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1 << 20 creates a very large index. The length is 1048577 but v8 doesn't allocate a full array of this size and uses a dict instead.
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An another possible typo is: The key in this case would be 9999 and the value "foo" instead of The key in this case would be 10000 and...
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Ah right :) thanks. I'll update the text accordingly.
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