Run results for: class vs object vs function

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser: Firefox 142

Operating system: Linux

Device Platform: Desktop

Date tested: 10 months ago

function

648.3M/s

class

594.1M/s

object

502.6M/s

extra: for i

377.7M/s

View exact numbers

Test name	Executions per second
✓ function	648,261,568 Ops/sec
class	594,122,048 Ops/sec
object	502,580,480 Ops/sec
extra: for i	377,708,096 Ops/sec

Script Preparation code:

let i = 0;
function init() {
  i++;
}

const obj = {
  i: 0,
  init: function() {
    this.i++;
  }
};

class sample {
  constructor() {
    this.i = 0;
    this.init();
  }
  init() {
	this.i++;
  }
}
const cls = new sample();

Tests:

class
cls.init();
object
obj.init();
function
init();
extra: for i
for (let i=0; i<1; i++)