Run results for: json stringify vs array join (string)

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 148

Operating system: Android

Device Platform: Mobile

Date tested: 2 months ago

join

5.4M/s

JSON.stringify

2.8M/s

View exact numbers

Test name	Executions per second
✓ join	5,449,540 Ops/sec
JSON.stringify	2,818,670 Ops/sec

Script Preparation code:

function moreData(arr, left) {
  if(left === 0) return arr;
  else {
    arr.push("Lorem ipsum dolor sit amet, consectetur adipiscing");
  	return moreData(arr, left - 1);
  }
}
function makeTestData() { return moreData([], 4); }

Tests:

join
makeTestData().join('-')
JSON.stringify
JSON.stringify(makeTestData());