Run results for: for vs foreach vs some vs for..of vs while 2 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; Mi A2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Mobile Safari/537.36

Browser: Chrome Mobile 88

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
for	766.0 Ops/sec
foreach	48809.3 Ops/sec
some	48884.9 Ops/sec
for..of	1297.2 Ops/sec
while	765.6 Ops/sec

Website performance monitoring

Script Preparation code:

var array = new Array(3000);

Tests:

for
for (var i = 0; i < array.length; i++) { array[i] * 2; }
foreach
array.forEach(function(i) { array[i] * 2; });
some
array.some(function(i) { array[i] * 2; });
for..of
for (var i of array) { array[i] * 2; }
while
let i=0; while(i < array.length) { array[i] * 2; i++; }