Status: Accepted
Owner: [email protected]
CC: [email protected]
Labels: Type-Bug Priority-Medium
New issue 1956 by [email protected]: Improve performance of array
builtins
http://code.google.com/p/v8/issues/detail?id=1956
Most array builtins that iterate over array elements need to call
[[HasProperty]] before calling [[Get]] to correctly verify whether an
element is actually present at the time of access. We could merge those two
accesses into one. This was introduced in r10737. The following builtins
are affected:
* Array.prototype.every
* Array.prototype.filter
* Array.prototype.forEach
* Array.prototype.map
* Array.prototype.reduce
* Array.prototype.reduceRight
* Array.prototype.some
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