Run results for: json stringify vs array tostring vs array join

Run details:

User agent: Mozilla/5.0 (iPad; CPU OS 16_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/103.0.5060.54 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 103

Operating system: iOS 16.5

Device Platform: Tablet

Date tested: one year ago

Test name	Executions per second
toString	1069282.2 Ops/sec
JSON.stringify	1032910.9 Ops/sec
Array.join	1073575.8 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([], 4); }

Tests:

toString
makeTestData().toString()
JSON.stringify
JSON.stringify(makeTestData());
Array.join
makeTestData().join(',')

Run results for: json stringify vs array tostring vs array join

toString

JSON.stringify

Array.join