Status: Accepted
Owner: [email protected]
Labels: Type-Bug Priority-Medium ES5
New issue 755 by [email protected]: Mapping functions on Array does
includes entries added by callback function.
http://code.google.com/p/v8/issues/detail?id=755
All Array mapping functions (i.e., functions that iterate over an array
applying a provided function to all entries) includes elements added to the
array by the provided function.
Effected functions:
Array.prototype.every
Array.prototype.some
Array.prototype.forEach
Array.prototype.map
Array.prototype.filter
Array.prototype.reduce
Array.prototype.reduceRight
What will reproduce the problem (example for filter from es5conform):
function callbackfn(val, idx, obj)
{
srcArr[2] = 3;
srcArr[5] = 6;
return true;
}
var srcArr = [1,2,,4,5];
var resArr = srcArr.filter(callbackfn);
print(resArr);
print(srcArr);
Expected result:
1,2,4,5
1,2,3,4,5,6
Actual result:
1,2,3,4,5
1,2,3,4,5,6
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