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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Linux

Device Platform: Desktop

Date tested: 4 months ago

Test name	Executions per second
for	7020.9 Ops/sec
foreach	489895.9 Ops/sec
some	451282.9 Ops/sec
for..of	12849.3 Ops/sec
for..in	565091.3 Ops/sec

Website performance monitoring

Script Preparation code:

var array = new Array(1000);

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]; }
for..in
for (var i in array) { array[i]; }