Benchmark: for vs foreach vs some

Script Preparation code:

var array = new Array(100);

Tests:

for..in
for (var i in array) { array[i]; }
foreach
array.forEach(function(item, index) { return item; });
some
array.some(function(item, index) { return item === array[index]; });
for
for (var i = 0; i < array.lenght; i++) { array[i]; }
vor with predefined size
var size = array.lenght for (var i = 0; i < size; i++) { array[i]; }
while
while((a=array.pop()) !== undefined){ //do your stuff }

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.98 Safari/537.36

Browser/OS: Chrome 54 on Mac OS X 10.12.1

for vs foreach vs some (version: 0)