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by bengillies 5138 days ago
If what you want is cross browser consistency of sparse arrays (that is, if you _really_ want to use them), then you should probably use ES5-shim or something instead.

Jeremy Ashkenas can support or not support whichever parts of built-in array behaviour he wants, given that:

a) It's his library b) It doesn't try and copy the standard ES5 API anyway