RealStaticProperty.js

class Person {

    constructor(name) {
        this.name = name;
    }

    static realStaticMethod() {
        console.log('static method');
    }
}

var john = new Person('john');

// Real static method
john.realStaticMethod() // Error => static cannot be accessed by instance
Person.realStaticMethod() // static method
Person.prototype.realStaticMethod() // undefined => run Error
john.__proto__.constructor.realStaticMethod() // static method

// Real static property
Person.realStaticProperty = 10;
john.realStaticProperty // undefined
john.__proto__.constructor.realStaticProperty // 10