ES6 JavaScript static methods definition

es6-javascript-static-methods.js

class MyClass {
    static myStaticMethod() {
        return 'Hello';
    }

    static get myStaticProperty() {
        return 'Goodbye';
    }
}

// samle usage of static methods
console.log(MyClass.myStaticMethod()); // logs: "Hello"
console.log(MyClass.myStaticProperty); // logs: "Goodbye"

// just like you expect, Static properties are not defined on object instances:

const myClassInstance = new MyClass();
console.log(myClassInstance.myStaticProperty); // logs: undefined

//However, they are defined on subclasses:
class MySubClass extends MyClass {};

console.log(MySubClass.myStaticMethod()); // logs: "Hello"
console.log(MySubClass.myStaticProperty); // logs: "Goodbye"