let Parent = function Parent() {
    console.log('Parent constructor');
};

Parent.prototype = {
    constructor: Parent,

    foo: function () {
        console.log('Parent foo');
    },

    super: function() {
        let caller = this.super.caller;
        var parent = this.superclass;
        // Вызов конструктора
        if (this instanceof this.super.caller) {
            parent.apply(this);
        } else {
            if (caller.name && parent.prototype[caller.name]) {
                parent.prototype[caller.name].apply(this);
            }
        }
    }
};

Parent.inherit = function (Constr, Prototype) {
    Constr.prototype = Object.create(this.prototype);
    Object.assign(Constr.prototype, Prototype);
    Constr.prototype.constructor = Constr;
    Constr.inherit = this.inherit;
    Constr.prototype.superclass = this;
    return Constr;
};


let Child = Parent.inherit(function Child() {
    this.super();
}, {
    foo: function() {
        this.super();
    }
});


(new Child).foo();