Run results for: Class method / instance method / bind this

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36

Browser: Chrome 85

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Call class method	6294433.5 Ops/sec
Call instance method	3080786.0 Ops/sec
Call bound method	5557000.5 Ops/sec

Script Preparation code:

window.A = class {
    a() {}
}

window.B = class {
    b = () => {};
}

window.C = class {
    constructor() {
        this.c = this.c.bind(this);
    }

    c() {}
}

​x
 
window.A = class {    a() {}}​window.B = class {    b = () => {};}​window.C = class {    constructor() {        this.c = this.c.bind(this);    }​    c() {}}

Tests:

Call class method
(new A()).a();
(new A()).a();
Call instance method
(new B()).b();
(new B()).b();
Call bound method
(new C()).c();
(new C()).c();

Run results for: Class method / instance method / bind this

Call class method

Call instance method

Call bound method