Run results for: for vs for..of vs forEach, arrow function - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.15

Browser: Safari 15

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
for native	32907.3 Ops/sec
for	16473.7 Ops/sec
forEach	69880.4 Ops/sec
some	44672.5 Ops/sec
for .. of	17776.9 Ops/sec

Script Preparation code:

var array = new Array(1000);

Tests:

for native
for (let i = array.length - 1; i >= 0; i--) { array[i]; }
for
for (let i = 0; i < array.length; i++) { array[i]; }
forEach
array.forEach((x) => x);
some
array.some((x) => false);
for .. of
for (let i of array) { array[i]; }