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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36

Browser: Chrome 89

Operating system: Mac OS X 11.2.3

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
for	134861.4 Ops/sec
foreach	3268438.0 Ops/sec
some	3618651.0 Ops/sec
for..of	113240.5 Ops/sec

Website performance monitoring

Script Preparation code:

var array = new Array(100);

Tests:

for
let arrLen = array.length for (var i = 0; i < arrLen; 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]; }