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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
for	154624.4 Ops/sec
foreach	9556759.0 Ops/sec
for in	7470086.0 Ops/sec
for..of	261533.1 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]; });
for in
for (var i in array) { array[i]; }
for..of
for (var i of array) { array[i]; }