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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0

Browser: Firefox 128

Operating system: Linux

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
for	9569023.0 Ops/sec
foreach	6143417.5 Ops/sec
for in	28678212.0 Ops/sec
for..of	741452.9 Ops/sec

Script Preparation code:

var array = new Array(100);

Tests:

for
for (let i = 0, len = array.length; i < len; i++) { array[i]; }
foreach
array.forEach(function(i) { i; });
for in
for (let i in array) { array[i]; }
for..of
for (let i of array) { i; }