Run results for: json stringify/parse vs array join/split (numbers) v1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser: Chrome 139

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 11 months ago

JSON.stringify/parse

1.1M/s

join/split

357K/s

View exact numbers

Test name	Executions per second
✓ JSON.stringify/parse	1,138,667 Ops/sec
join/split	357,006 Ops/sec

Script Preparation code:

function moreData(arr, left) {
  if(left === 0) return arr;
  else {
    arr.push(Math.floor(Math.random() * 1000000));
    return moreData(arr, left - 1);
  }
}
function makeTestData() { return moreData([], 40); }

Tests:

join/split
makeTestData().join(',').split(',').map(Number)
JSON.stringify/parse
JSON.stringify(makeTestData());