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

Run details:

User agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0

Browser: Firefox 50

Operating system: Fedora

Device Platform: Other

Date tested: 6 years ago

Test name	Executions per second
for	1215116.0 Ops/sec
foreach	5233454.0 Ops/sec
some	5267434.0 Ops/sec
for..of	88177.5 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]; }