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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36

Browser: Chrome 141

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 9 months ago

join

13.5M/s

JSON.stringify

9.7M/s

View exact numbers

Test name	Executions per second
✓ join	13,517,260 Ops/sec
JSON.stringify	9,686,858 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());