Run results for: Class instance method lookup vs function-created object method lookup

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Browser: Firefox 84

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Class instance method lookup	68332160.0 Ops/sec
Function-created object method lookup	31726560.0 Ops/sec

Script Preparation code:

window.AClass = class {
  b() {
    return 4;
  }
}

window.AFunc = function() {
  return {
    b() {
      return 4;
    }
  };
};

Tests: