Run results for: json stringify urlsafe vs array tostring base64

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0

Browser: Firefox 98

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
to base64 string	3237694.0 Ops/sec
json stringify	1541444.8 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:

to base64 string
makeTestData().toString("base64")
json stringify
encodeURIComponent(JSON.stringify(makeTestData()));

Run results for: json stringify urlsafe vs array tostring base64

to base64 string

json stringify