javascript instantiate class

1. Preface some people think JavaScript is a process-oriented language. Because basically all functions are written and called. ==> This idea is incorrect. The founder of JS is Brendan Eich. When JavaScript was founded, Java and object-oriented design had become popular. In May 1995, Netscape made a decision. In the future, the Web Page scripting language must "look similar to Java", but it is simpler than

1. Quick StartExample 1: Defining a person's information through native JS and object-oriented JSDOCTYPE HTML>HTML>Head>MetaCharSet= ' utf-8′>title>title>Head>Body>Script>//define a person's information by JS codevarname=' Lisi'var age = ' 30′;var marry = False;alert (name+ '-' +age+ '-' +marry ');//define a person's information function () by object-oriented () {}// Instantiate the person class var p1 = ne

};} Using This syntax changes nothing in the The-the-instantiate the object and use its properties and METHODS.1.2. Methods added to the prototypeA drawback of 1.1. is, The method GetInfo () is recreated every time you create a new Object. Sometimes that may is what you want, but it's rare. A more Inexpensive-is-to-add GetInfo () to the prototype of the constructor Function.function Apple (Type) { This.Type=Type;This.Color="Red";} Apple.Prototy

Javascript class, namespace, Code Organization Code. For details about js learning, refer. The Code is as follows: $ (Function (){PageJs. urls = ['/', 'Index ',];PageJs. run ();});// The functions include html elements. Ajax function also can be put here.Var Common = {Init: function (){Alert ('common ');}};// Url -- pagesVar Index = {Init: function (){Common. init ();This. test ();This. test2 ();Alert (l

There are many ways to obtain elements through javascript. This article briefly introduces the implementation code of getting elements through class. If you are interested, please refer to it. I hope this article will help you with your knowledge. The Code is as follows: Function getByClass (classname ){Var nodes = document. getElementsByTagName ('*'),Ret = [];For (var I = 0; I If (hasClass (nod

() {document.write ("document.write ("}}Creating objects is the same as C #:Instantiate an Objectvar article =new cnblogs.news.Article ();Assigning values to an object's propertiesArticle.title= "This is the title of the article";Article.content= "This is the content of the article";Methods for calling ObjectsArticle.show ();Two, define static classes : The so-called static class is called directly to the

JavaScript library called Prototype.js in their own projects, developed by the MVC Web framework Ruby on Rails and use the JavaScript base library. This library is well-designed and has good reusability and cross-browser features, and using prototype.js can greatly simplify the development of client code. Prototype.js introduces the concept of a class that can b

JavaScript does not have the concept of class, but JavaScript has its own prototype mechanism, we can use the prototype mechanism (Prototype,constructor) to pseudo a class out, commonly known as "pseudo-class."When a new function object is created, it is given a prototype pr

Learn more about JavaScript (post) Large | medium | small [2006/12/05 | by Song] Understand JavaScript classes from shortest to deep (post) From 51js I 've been mixing up my script for a while recently and replied to some posts, but I didn't make anything to show it to everyone. I felt a little uneasy, so I wrote something below, it should have been sent in the class