RESOLVED CONFIGURATION CHANGED 131462
Spread operator performance in pure array concatenation should be closer to Array.prototype.concat 
https://bugs.webkit.org/show_bug.cgi?id=131462
Summary Spread operator performance in pure array concatenation should be closer to A...
Joseph Pecoraro
Reported 2014-04-09 15:49:47 PDT
Created attachment 228995 [details] [TEST] Test Case Comparing the performance of: var combined = [...arr1, ...arr2]; var combined = arr1.concat(arr2); The concat is faster then the spread. They should be closer in performance considering they produce the same result. See attached test case.
Attachments
[TEST] Test Case (1.89 KB, text/html)
2014-04-09 15:49 PDT, Joseph Pecoraro 		no flags
Details
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Joseph Pecoraro
Comment 1 2020-04-09 14:22:05 PDT
Looks like the performance is now even better for the spread case for this test case. So this can probably be closed?
Alexey Proskuryakov
Comment 2 2020-04-10 09:49:43 PDT
I don't see why not!
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