Prototype usage in js

Prototype is a method introduced in IE4 and later versions for a certain type of objects, and it is particularly convenient: it is a method for adding methods to class objects! This may sound a little messy. Don't worry. Next I will use the instance

JavaScript walkthrough (2). Default Parameters

/* Default parameter */functionfunc (a, B, c) {aaundefined? 3: a; // default value: 3 bbundefined? 3: B; // default value: 3 ccundefined? 3: c; // default value: 3ret... SyntaxHighlighter. all ();   /* Default parameter */Function func (a, B, c

JavaScript walkthrough (4). Callback Function

Varfuncfunction (callback, a, B, c) {returncallback (a, B, c);} varfunAddfunction (a, B, c) {functioncallback (a, B, c) {returna + B + c;} returnfunc (... syntaxHig Var func = function (callback, a, B, c ){Return callback (a, B, c );} Var funAdd =

JavaScript walkthrough (6). Function Definition and self-execution

/* Function definition */functiona () {return1;} varbfunction () {return1 ;}; varcfunctiond () {return1 ;}; // dundefinedvarenewFunction (& quot; return1; & quot ;);... syntax /* Function definition */Function a () {return 1 ;} Var B = function ()

Javascript web games: quiz

// Web game: quiz & lt ;! DOCTYPEhtmlPUBLIC & quot;-// W3C // DTDHTML4.01Transitional // EN & quot; http://www.w3.org/TR/html4/loose.dtd">// Web games: guessing Insert title here

Introduction to Jquery 1

For webdevelopement, I want to explain my understanding and summary of Jquery knowledge. I hope to help you. I also welcome your comments: jquery was created by JohnResig, an American. jquery's purpose is: writerless, domore for jquery...

Use Javascript to implement horizontal or vertical scrolling of webpage content

The main advantage of using Javascript to implement horizontal or vertical scrolling of news content is that we can implement custom scrolling styles or special effects. The application effect is more distinctive than the traditional marquee, and

Three implementations of page return to the top

This article introduces three simple codes on the top of the returned page. You can use simple HTMLhttp: // response... This article describes three simple return page top codes. You can use simple HTMLhttp: // www.metsky.com/archives/189.html

Javascript guess digital game program

& Lt ;! DOCTYPEhtmlPUBLIC & quot;-// W3C // DTDHTML4.01Transitional // EN & quot; http://www.w3.org/TR/html4/loose.dtd"> Insert title here

Operation browser window for JavaScript notes

Windows are the most important interface elements in Web browsers. JavaScript provides many window operating tools, the JavaScript processing window is similar to the Processing Framework (because the framework is located in the document window in

Operations on tables in javascript: Create a table to delete rows Delete columns swap row Columns

& Lt ;! DOCTYPEhtmlPUBLIC & quot;-// W3C // DTDHTML4.01Transitional // EN & quot; http://www.w3.org/TR/html4/loose.dtd"> Insert title here

Use a link to JavaScript notes to redirect users

You can seamlessly redirect users to another page based on whether they have enabled the JavaScript function. This example shows how to embed the redirection function into the link. Two HTML pages and a JavaScript file will be used below. The first

Garbled web page problems when using Jquery

Many times, some Jquery plug-ins on the Internet have garbled Characters During page running. I have summarized three points and hope to help you: 1. When importing Jquery code: other text on the webpage is normal, while Jquery code displays an

Differences Between opener and parent

Opener is who opens my project. For example, A page uses window. when the open dialog box appears, the window where page A is located is the opener of page B. You can access page A through the opener object on page B. Parent indicates the parent

Sort elements in a javascript table (forward and reverse)

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Extjs allows you to preview uploaded images.

I have found a lot of EXTJS files on the Internet to upload and preview images, but they do not work. Although IE8 can be used, there must be compatibility issues with other browsers. I have to wait for a while .. {Width: 450, fileUpload: true,

Javascript cannot capture the conjecture of the mouseup event on the scroll bar

For example, in a webpage chat room, the scroll bar will automatically scroll down as the content increases. When you press the mouse over the scroll bar, we can assume that he or she is browsing the chat content. In this case, a good user

Differences between the while, do-while, for-in, and for statements in javascript

Do-while is more than a while loop once, I will not give an example. For loop I believe everyone is familiar with it, so let's look at the for-in sentence. This is actually for arrays. The array initialization in js is also quite strange. For

Basic and simple examples of jQuery

Download jQuery address: After the http://jquery.com download is completed first loaded into the document, then let's take a look at a simple example! & Lt; scriptlanguage & quot; javascript & quot; type & quot; text/javascript & quot; & gt; $

Jqueryabort bug, ie Long polling bug

Recently, the company's project needs to do some webim research and found the following three problems during the demo test: 1. uninterrupted long polling of requests, when refreshing the page on IE, the page will get stuck. 2. The initial estimate

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