Run results for: 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/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
for	965846.7 Ops/sec
foreach	3683488.8 Ops/sec
some	1826720.2 Ops/sec
for..of	3725722.5 Ops/sec
for..in	60997.2 Ops/sec

Script Preparation code:

var array = new Array(1000).fill(0);

Tests:

for
for (let i = 0, length = array.length; i < length; i++) { array[i] }
foreach
array.forEach(item => item);
some
array.some(item => item);
for..of
for (let item of array) { item }
for..in
for (let i in array) { array[i] }