Run results for: json stringify vs array tostring when long array

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.4 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 months ago

toString

14K/s

JSON.stringify

14K/s

View exact numbers

Test name	Executions per second
✓ toString	14,481 Ops/sec
JSON.stringify	13,797 Ops/sec

Script Preparation code:

function moreData(arr, left) {
  if(left === 0) return arr;
  else {
    arr.push(Math.floor(Math.random() * 256));
  	return moreData(arr, left - 1);
  }
}
function makeTestData() { return moreData([], 5000); }

Tests:

toString
makeTestData().toString()
JSON.stringify
JSON.stringify(makeTestData());