Run results for: Array looping - for, Array.forEach, for-of, array.entries() - V2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
Simple for loop - Access index and value	4473.3 Ops/sec
Array.forEach - Access index and value	5234.6 Ops/sec
for-of + Array.entries	5193.3 Ops/sec
for-of - Access value only	5298.6 Ops/sec
Simple for loop - Access value only	4361.9 Ops/sec
Array.forEach - Access value only	5078.9 Ops/sec

Script Preparation code:

var arr = [];
var res = [];

for( var cpt = 0; cpt < 1000; cpt++ ) {
  arr.push(Math.random());
}

Tests:

Simple for loop - Access index and value
res = []; const len = arr.length; for(let i = 0; i < len; ++i) { res[i] = arr[i]; } console.log(res);
Array.forEach - Access index and value
res = []; arr.forEach((value, i) => { res[i] = value; }); console.log(res);
for-of + Array.entries
res = []; for(const [i, value] of arr.entries()) { res[i] = value; } console.log(res);
for-of - Access value only
res = []; for(const value of arr) { res.push(value); } console.log(res);
Simple for loop - Access value only
res = []; const len = arr.length; for(let i = 0; i < len; ++i) { res.push(arr[i]); } console.log(res);
Array.forEach - Access value only
res = []; arr.forEach((value) => { res.push(value); }); console.log(res);