Benchmark: Some benchmark >!>

Script Preparation code:

window.arr = Array.from(new Array(50).keys()).map((i) =>
  [1, 3].includes((i + 1) % 7) ? i * -1 : (i + 1) * 7
);

Tests:

For
const firstArr = new Array(window.arr.length); let firstArrIndex = 0; const secondArr = new Array(window.arr.length); let secondArrIndex = 0; for (let index = 0, length = window.arr.length; index < length; ++index) { if (window.arr[index] <= 0) { firstArr[firstArrIndex++] = window.arr[index]; } else { secondArr[secondArrIndex++] = window.arr[index]; } } for (let index = 0; index < secondArrIndex; ++index) { firstArr[firstArrIndex++] = secondArr[index]; } const result = firstArr; return result;
For_each
const firstArr = []; const secondArr = []; window.arr.forEach((element) => { if (element <= 0) { firstArr.push(element); } else { secondArr.push(element); } }); const result = firstArr.concat(secondArr); return result;
For push
const firstArr = []; const secondArr = []; window.arr.forEach((element) => { if (element <= 0) { firstArr.push(element); } else { secondArr.push(element); } }); const result = firstArr.concat(secondArr); return result;
Filter
const result = window.arr .filter((value) => value <= 0) .concat(window.arr.filter((value) => value > 0)); return result;

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5032.0 Safari/537.36 Edg/103.0.1255.0

Browser/OS: Chrome 103 on Mac OS X 10.15.7

Some benchmark >!> (version: 0)