JavaScript

The first and second sections of this series introduce JavaScript module prototypes and theoretical concepts, and today we show you how to use them in combat.I am using a very popular library require.js.First, why use Require.js?At the earliest, all

1. Using prototype to implement inheritance  1 functionBaseClass ()2 {3 varPrivatename = "Private";4 5 This. pubicName1 = "Public1";6 7 varPrivatemethod =function()8 {9Alert ("Privatemethod");Ten } One A This.

The module pattern is a common JavaScript coding pattern. It's generally well understood, but there is a number of advanced uses that has not gotten a lot of attention. In this article, I'll review the basics and cover some truly remarkable advanced

Collection1. Determine if the value= "Paravalue" item exists in the SELECT option2. Add an item to the Select option3. Remove an item from the Select option4. Delete selected items in select5, modify the Select option Value= "Paravalue" text is

ThisThis represents the current object, if this is used within the global scope, refers to the current Page Object window, and if this is used in the function, the this refers to what is called based on what object the function is running at. We can

Grammar Strict mode enables strict mode to add "use strict" above the top of the script or inside the function; Statement. Data type typeoftypeof returns a undifined,boolean,number,string,object,function of six strings, typeof null

Long time no writing, just recently because of work needs, wrote a waterfall stream asynchronous loading program.Don't talk about the waterfall today, let's talk about the load problem.-------------------------------------------------------------As

The sudden impulse to write something that can be considered in the case of Func ({arg1:xxx, arg2:xxx}) is not applicable. namespaces, parameter type overloading Arg-func.js:(function () {if (! String.prototype.trim) {String.prototype.trim

Creates a new variable of type date D1.var D1 = new Date (); alert (D1);The post-run page will pop up:Fri Sep 16:40:50 gmt+0800Create a new variable d2, assign the value of D1 to D2, set the D2 year to 2013,var D2 = D1;d2.setfullyear ("n"); alert (D1

Today is the second chapter. The so-called lexical structure (lexical structure), is to write the code of the most basic things, variable name, comment, statement separation, etc., this is transcription copy ...1. Character set, must be Unicode,

A GUID (global uniform identifier) is a number generated on a machine that guarantees that all machines in the same time and space are unique. Typically, the platform provides the API to generate the GUID. The generation algorithm is interesting,

1. Primitive type value undefined, Null, Boolean, number, and StringCopy process for base type values ( plot )The base type value occupies a fixed amount of space in memory and is therefore stored in the stack memory;Copying a base type value from

Recently multiple pages need to load some drop-down list boxes for the user to choose, the original is loaded on the server side should be used. Finally, becauseBusiness logic considerations, you need to put some of the functionality of DropDownList

Use the extension functions provided by the JQuery library to implement custom methods and jquery extension Functions The JQuery package provides a large number of methods that can be directly used on the page. However, none of the libraries can

JQuery floating navigation menu is suitable for shopping products The content of a single page is large, and the page length is large, so it is convenient to quickly locate the page in different locations. As a result, floating menus are becoming

Using jquery to parse XML, jquery parses xml This example describes how to use jquery to parse XML and share it with you for your reference. The specific method is as follows: I. xml file structure: books. xml extjs JOHN 88 sharp jQuery

. Net mvc4 + ajaxfileupload. js solves the problem of the pop-up Download Dialog Box in IE browser. Abstract: Everyone encounters different problems. I have not solved my problems after finding a large circle on the Internet! This problem is solved

How to stack automatically generated js elements and original page elements. js automatically generates Product attributes and product specifications are the elements dynamically generated by js. The two text boxes of product extension information

Add a random number to introduce the script to prevent the browser from reading the cache. the random number script How can we get a link to prevent the browser from reading the cache? % Response. setHeader (Cache-Control, no-cache); // HTTP 1.1

JavaScript checks whether the textarea value is null and provides the corresponding prompt, javascripttextarea In webpage design, JavaScript is often used to determine whether a user inputs valid data. If the user does not input data, a prompt is