Just trying to understand why every JavaScript object has a constructor property.
Is there any use of constructor property because object is already created?
var MyFunc = function (name){this.name=name}
var instance = new MyFunc("myclass");
now instance has a constructor property which has reference to MyFunc itself. What is use of having constructor property on instance?
It is (much) more complicated than that : no object, in, JS has a constructor property by default, but their prototype (if the object has a prototype) have one.
Also, be careful : the constructor references a function, but this prototype property is not read-only, so one can easily change the property, therefore do not rely on it.
Does this answer your question ?
var dog1= {"a":1}
function Dog ()
{
}
dog2= new Dog();
console.log(dog1.constructor) //function Object() { [native code]...
console.log(dog2.constructor) //function Dog()...
Sometimes you need to know how object was created. ( not to mention that prototype is a constructor property)
Dog.prototype, but you only had access to the dog2 instance, you could access Dog.prototype with dog2.constructor.prototype.