04-ambito-ejercicio

Dadas las siguientes funciones contructoras

    function Foo(name){
        this.name =name
    }

    function Bar(name,surname){
        this.name = name;
        this.surname = surname
    }

crear una function factoria que simule el function del 
operador new

function factory(scope,strType,...args){
    const ctor = scope[strType];
    if(!ctor){
        throw `el ${strType} no existe`
    }
    const instance = Object.create(ctor.prototype)
    ctor.apply(instance, args)
    return instance;
}

factory(window, "Foo", "Pedro")
factory(window, "Bar", "Pedro", "Hurtado")
factory(window, "Pepito", "Pedro", "Hurtado")