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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:66.0) Gecko/20100101 Firefox/66.0

Browser: Firefox 66

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
for	815466.4 Ops/sec
foreach	3820444.0 Ops/sec
some	3821224.0 Ops/sec
for..of	71455.7 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]; });
some
array.some(function(i) { array[i]; });
for..of
for (var i of array) { array[i]; }