About prototype_javascript skills of Javascript objects

Every object in Javascript has a prototype. Try it:

Copy code The code is as follows:

var Richard = new Object();
alert(typeof(Richard.prototype));

The result is depressing, the browser pops up undefined...

What is going on?

Look at another example:

Copy the code The code is as follows:

function Richard(){}
alert(typeof(Richard.prototype));

The above example seems to show that only function objects have prototypes, while general Object objects do not have prototypes. What are the facts?

We will understand if we execute another sentence:

Copy the code The code is as follows:

var Richard = new Object();
alert(Richard.__proto__);

Do you understand?

In fact, we all have a misunderstanding, that is, the prototype that forms the prototype chain of a Javascript object is a property named prototype, and it is accessible. In fact, Javascript's prototype and the property named prototype have nothing to do with each other at the beginning. They are two different things.

For general objects, we can only access the prototype inherited from the Object object through attributes such as __proto__;

For function objects, when they are created, they have been The prototype of the Function object is assigned to the prototype attribute.