object prototype

Tips for javscript object prototype. For more information about js object-oriented learning, see. 1. function func (){ This. name = "huhao"; // This variable is private and can only be accessed when a new object is created, for example, var obj = new func (); obj. the name can be accessed and modified, but it can only

(' Lee ', 100);var box2 = new Box (' Jack ', 200);var box3 = new Desk (' KKK ', 500);Alert (box1.run ());Alert (box2.run ());Alert (box1 instanceof Box);Alert (box2 instanceof Box);Alert (box3 instanceof Desk);Prototypefunction Box () {} //constructor functions There is nothing in the body, if there is, it is called instance property, instance methodBox.prototype.name = ' Lee '; //prototype PropertiesBox.prototype.age = 100; //

Basic conceptsPrototype chain each constructor has an object, and the prototype object contains a pointer to the constructor, and the instance contains an internal pointer to the prototype object. Then, if the prototype

JavaScript prototype object pattern. Prototype Object pattern Understanding the Prototype object When we create a function, the function has a prototype property that points to the

This article is from the "matengbing" blog, make sure to keep this source http://matengbing.blog.51cto.com/11395502/1879309JavaScript prototype object and instance object properties

I. Prototypes and constructors JS all functions have a prototype attribute, this property refers to an object, that is, the prototype object, also referred to as the prototype. This function includes constructors and ordinary functions, and we are talking more about the prot

Prototype chain to understand a bit around, the online material is also a lot, every night when sleep is always like to find some prototype chain online and closure of the article look, the effect is very good.Don't get tangled up in that pile of jargon, that's not really going to help you unless you twist your brains. Simply look at the prototype chain and try s

Deep understanding of javascript constructor and prototype object, and javascript Constructor Common Object creation Modes Create with the new KeywordThe most basic object creation method is the same as that in most other languages: no object. You are new! var gf = new

= name;This.age = age;This.run = run;}function run () {//Call through outside to ensure consistent reference addressReturn this.name + this.age + ' running ... ';}Although the global function run () is used to solve the problem of guaranteeing a consistent reference address, this approach bringsA new problem, the this in the global is the box itself when the object is called, and when it is called as a normal function,This also represents window.Prot

) = "Boolean", typeof (1) = "number ". Since the string is always returned, for typeof (typeof X), No matter what X is, "string" is always returned ". 　　　　 Constructor Without a class in JS, there is no constructor in the class. How is an object created? Constructor. Constructor is actually a function, so it is also an object. Function base () {} at the beginning is a constructor. var B = new base () is us