Run results for: for vs forEach vs for..in vs for..of (with fixed iterator item reference)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser: Chrome 112

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var array = [...Array(1000).keys()];

Tests:

for length
for (var i = 0; i < array.length; i++) { console.log(array[i]); // i is index }
forEach
array.forEach(function(i) { console.log(i); // i is array item });
for..in
for (var i in array) { console.log(array[i]); // i is index }
for..of
for (var i of array) { console.log(i); // i is array item }