Run results for: KaiOS this

Run details:

User agent: Mozilla/5.0 (Mobile; Nokia 8000 4G; rv:48.0) Gecko/48.0 Firefox/48.0 KAIOS/2.5.4.1

Browser: Firefox Mobile 48

Operating system: Firefox OS

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
class 1	14108994.0 Ops/sec
class 2	14149844.0 Ops/sec
func	9344546.0 Ops/sec

Script Preparation code:

class A {
  constructor(x) {
    this.x = x;
  }
  getX() {
    return this.x
  }
}

class B extends A {
  getX() {
    return this.x
  }
}

var a = new A(1)
var b = new B(1)

var obj = { x: 1 }

function getX(o) { return o.x }

Tests:

class 1
a.getX()
class 2
b.getX()
func
getX(obj)

Run results for: KaiOS this

class 1

class 2

func