JavaScript Basics-Objects

Principle

All things are objects. Suppose ' Mulder ' (Me) as an object. The properties of the MoD are name, gender, age, etc. Mulder's behavior is eating, walking, sleeping and so on. The interaction between Mulder and others is an object. Object corresponds to an entity in the world. Class, which is the classification of managed objects. If the MoD is a specific object. A man is a class. person is the interface.

How to Build

Singleton object: JSON

Common objects:

(function (w,m) {    = function () {        // constructor function   Invitefriends () {};         // prototypes        Invitefriends.prototype = {            ' invitefriends ',            ...        }         return New   invitefriends (). init ();}    ;}) (Window,  window.) HB);

Inherited

　　Off Topic

Basic usage of objects: combination, inheritance.

Combination, where an object introduces another object. The two are interwoven together to accomplish a function.

notation

To inherit the parent class's construction method

     Supertype.call (this, arguments);

Inherit the prototype chain of the parent class

         var prototype = Object (suptype.prototype);          = subtype;          = prototype;

principle

, each object will have a prototype object that is pointed to by a hidden reference [[prototype]]. In the prototype object, [[prototype]] points to the parent object, and the layer is traced back to object.