Run results for: json stringify vs array tostring

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; Redmi Note 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.116 Mobile Safari/537.36 OPR/55.2.2719.50740

Browser: Opera Mobile 55

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
toString	191132.5 Ops/sec
JSON.stringify	176292.3 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());

Run results for: json stringify vs array tostring

toString

JSON.stringify