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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:48.0) Gecko/20100101 Firefox/48.0

Browser: Firefox 48

Operating system: Mac OS X 10.10

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
for	1551013.0 Ops/sec
foreach	3986105.0 Ops/sec
some	3928042.0 Ops/sec

Website performance monitoring

Script Preparation code:

var array = new Array(100);

Tests:

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