Run results for: if else vs runtime polymorphic

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 11.1.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
if else	7626453.0 Ops/sec
polymorphic	15571560.0 Ops/sec
a_foo	15808900.0 Ops/sec

Script Preparation code:

class Base {
  foo () {}
}

class A extends Base {
  foo () {}
}

class B extends Base {
  foo () {}
}

var a = new A()
var b = new B()

function a_foo () {}
function b_foo () {}

var type = 'componenta'

Tests:

if else
if (type === 'componenta') { a_foo() }
polymorphic
a.foo()
a_foo
a_foo()