Run results for: new class from fn vs function returning obj from fn 2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

new class

14.2M/s

new fn

9.9M/s

View exact numbers

Test name	Executions per second
✓ new class	14,204,040 Ops/sec
new fn	9,910,564 Ops/sec

HTML Preparation code:

<script>

 class TestClass {
    constructor() {
        this.a = 2;
        this.t = 'mesh';
    }
}

 function TestFn(){
  return {
   a:2,
   t:'mesh'
  };
}

</script>

Tests:

new class
var obj = new TestClass()
new fn
var obj = TestFn()

Run results for: new class from fn vs function returning obj from fn 2

Measure the performance of instanceOf operator vs comparing a basic string type.

new class

new fn