On 3/10/11 8:44 PM, Charles Kendrick wrote:
It requires browser vendors to implement order preservation, such that we don't get the minor optimization that's possible from not preserving order at all.
For what it's worth, not preserving order for numeric properties allows optimizations that are decidedly not "minor".
You can compare the performance of "fast" and "slow" arrays in Spidermonkey to see the difference.
-Boris _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
