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

Run details:

User agent: Mozilla/5.0 (Android 9; Mobile; rv:68.0) Gecko/68.0 Firefox/68.0

Browser: Firefox Mobile 68

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
for	584383.9 Ops/sec
foreach	2686292.0 Ops/sec
some	2659227.0 Ops/sec
for..of	64604.0 Ops/sec

Website performance monitoring

Script Preparation code:

var array = new Array(100);

Tests:

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