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

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0

Browser: Firefox Mobile 91

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
for	11562396.0 Ops/sec
foreach	7712607.5 Ops/sec
some	7706612.5 Ops/sec
every	7301257.0 Ops/sec
for..of	684688.7 Ops/sec
map	4040710.8 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(i) { array[i]; });
some
array.some(function(i) { array[i]; });
every
array.every(function(i) { array[i]; });
for..of
for (var i of array) { array[i]; }
map
array.map(a => a);