Run results for: for vs foreach vs some - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0

Browser: Firefox 60

Operating system: Fedora

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
for	732292.9 Ops/sec
foreach	4833104.0 Ops/sec
some	4855444.5 Ops/sec

Script Preparation code:

var array = new Array(100);

Tests:

for
for (var i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(item, index) { return item; });
some
array.some(function(item, index) { return item === array[index]; });

;