Class is one of the core concepts of object-oriented programming. A class represents the abstraction of a category of things with similar attributes. Starting with this article, we will formally enter the object-oriented part of JavaScript. The first thing to note is that there is no "class" keyword in
This article takes the previous JavaScript object-oriented programming (1) Foundation.
As mentioned in the previous article, JavaScript does not have a class concept and needs to implement the definition of classes through functions. Let's take an example to illustrate:
Copy Code code as follows:
function MyClass ()
{
var id = 1;
var
see through Firebug that Requirejs will insert a.js and b.js on the current page and declare a
Case three: Requirejs inserted
Use Requirejs to define JavaScript modules
The JavaScript module here is different from the traditional JavaScript code in that it does not need to access global variables. The modular design allows
.") ");
};
function Fancy () {
Alert ("Fantasy becomes 20 years old.") ");
};
function () {
Alert (", 20 years old.") ");
};
};
New Lady ();
alert (younglady.age); //Results undefined
does not support
does not support
The above is a lady class, age, find, fancy are all private members, and the fancy method can access the age and
A JavaScript class library for table content sorting. It's easy to use and you don't have to call the database every time.
Especially suitable for the sorting of multiple table queries. Plus the Effect Demo
Usage:
1. Add JS
2. Add table, Note: Must have id,class for "sortable"
OK, that's it, easy.
If you feel too monotonous, add your own CSS, the official gave t
It's classname, not class.
Note that JavaScript uses classname to access the class attribute because class is a reserved keyword, because in the future JavaScript might begin to support classes like Java.
When we discussed the style attribute, we had a problem with tricky
This article illustrates the class and instance implementation methods in JavaScript. Share to everyone for your reference. Specifically as follows:
JavaScript does not have a parent class, the concept of subclasses, there is no class and instance concept, rely on prototype
This article focuses on parsing the javascript class inheritance mechanism, so that you can understand how javascript implements the concept of "inheritance" from the underlying layer. Currently, javascript implementation inheritance is not implemented through the "extend" keyword, but through the constructor function
Everyone knows about Javascript
TypeofThe types of variables can be obtained, but there are only six return values for typeof: "number," "string," "Boolean," "object," "function," and "undefined ."
In fact, JavaScript still has many special categories, such as array and date. Why can't they be returned in typeof?Origi
This blog is reproduced in: http://devbean.javaeye.com/blog/406265
Class is one of the core concepts of object-oriented programming. A class represents the abstraction of a class of things with similar attributes. Starting from this article, we will officially enter the object-oriented section of JavaScript. The first
=456 ',//Data parameter format can be a string or an object //Data: {c:456},DataType:' JSON ', Async:false, Success: function(data, status, XHR){Console.log (data); }, Error: function(XHR, status){Console.log (XHR); } });NewAjax (). Ajax ({type:' Post 'Url:' ajax.php?c=123 ',//If it is a Get method and the URL contains a parameter, its parameters are replaced by dataData' c=456 ',the//data parameter format can be a string or an object //Data: {c:456},DataType:' text
class name;
Finally, set the script event to toggle the class name of the target element.
In this way,: hover,: Active and: Focus can get (IE's) support. And as a developer, you don't have to do anything other than include this behavior. All the work will be done automatically.
Compared to versions 1th and 2n
Before you learn JavaScript object-oriented programming, you need to know and understand some of the basic common sense of object-oriented. Most of the beginners think that object-oriented programming is very important and takes up a great part of the effort. I have previously thought that OOP is the main object-oriented part, then I hold the same idea, the following first to correct this idea, really understand object-oriented.First, the initial know
In object-oriented programming, a class is a template for objects (object) that defines properties and methods common to the same set of objects (also known as "instances").The JavaScript language does not support "classes," but you can use some workarounds to simulate "classes."First, the method of constructing functionThis is the classic method, but also the textbook must teach method. It simulates a "
architected (directory-based architecture). Follow-up will continue to complement and refine the use of the jquery plugin and so on. About the architecture, the previous concern is relatively more, but recently want to turn out to play, so the follow-up will be about. NET architectural aspects of this issue.The class library written this time is actually very simple, is to use jquery encapsulation, using JavaScri
For example:
The code is as follows
Copy Code
function User (name,age) {This.name=name;This.age=age;This.canfly=false;}var use=new User ();
2, defining object properties
1 JS can be defined for the object of three types of properties: Private properties, instance properties and class properties, similar to Java, private p
Https://www.imooc.com/learn/36Note: JavaScript can be placed anywhere in the HTML page as a scripting language, but the browser interprets the HTML in order, so the preceding script is executed first. For example, the page display initialization of JS must be placed in the head, because the initialization is required to advance (such as the page body set CSS, etc.), and if the function is executed through the event call the position is not required.Ou
Web page development, in many cases we need to manipulate the same class name elements, that is, class the same element. Yesterday to participate in the written exam, there is a related topic did not answer:
JavaScript Gets the node with class test in the page
Then collect
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