Run results for: for vs foreach vs some vs for..of

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; RMX1805) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.230 Mobile Safari/537.36 OPR/80.1.4244.77335

Browser: Opera Mobile 80

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

foreach

458K/s

some

428K/s

for..of

14K/s

for

9K/s

View exact numbers

Test name	Executions per second
✓ foreach	457,612 Ops/sec
some	428,121 Ops/sec
for..of	14,362 Ops/sec
for	8,823 Ops/sec

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]; }

Run results for: for vs foreach vs some vs for..of

Compare loop performance

for

foreach

some

for..of