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

Run details:

User agent: Mozilla/5.0 (Android 8.1.0; Mobile; rv:89.0) Gecko/89.0 Firefox/89.0

Browser: Firefox Mobile 89

Operating system: Android 8.1.0

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
for	1625214.0 Ops/sec
foreach	759232.4 Ops/sec
some	772429.8 Ops/sec
for..of	97684.0 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]; }