JavaScript

Let's look at a simple Javascript debugging package: jscript. debug. js contains two functions. The first is used to traverse each attribute of an object; the second is a general Debug function (in fact, 'object' is more 'accurate ), it is used to

Function objectFirst, you must clarify the concept that a function is an object, and an object that represents a function is a function object. Since it is an object, who constructed it? Next let's look at a description: when defining a Function in

Someone asked a js question:Copy codeThe Code is as follows:Var I = 0.07;Var r = I * 100;Alert (r ); Why is the result 7.0000000000000001?After checking the information, we know that in JavsScript, variables are stored by float instead of the number

I. Preface In the past, JavaScript was only used for some simple web page effects, such as form verification and floating advertisements. At that time, JavaScript was not taken seriously. Since the beginning of AJAX popularity, people have found

The home page provides an example with Chinese instructions. Many of the following examples can be tested.Copy codeThe Code is as follows:Copy codeThe Code is as follows:If you open an EXCEL file on a webpage, there will be EXCEL. EXE in the process

/*** @ Author Super Sha* QQ: 770104121* E-Mail: supei_shafeng@163.com* Publish date: 2009-3-27* All Rights Reserved*/Var JsHelper ={}; // declare a JsHelper root namespaceJsHelper. DOM ={}; // declare the DOM namespace under the JsHelper

1. Objects in JavascriptJavaScript can be said to be an object-based programming language. Why is it object-based rather than object-oriented? Because JavaScript itself only implements encapsulation without inheritance and polymorphism. Since it is

If the js files are relatively small and a js file is better, this can reduce the number of connections. The following are four commonly used methods. You can select one method based on your needs.1. Directly document. writeCopy codeThe Code is as

1. encapsulated JS files//************************************** ******************// Creation date:// OPERATOR: oloen// Content Description: Automatically complete the JS class// Usage:// Var auto = new autoComplete (Client ID );// Auto. Init

However, if you need to find a specific element in the document, the most effective method is getElementById ().However, when using getElementById, The results may be different for different browsers.Copy codeThe Code is as follows:Text1:Text2:I

I looked at other materials, including CPU extraction, but there was no hard disk serial number in MAC out-of-the-box code. After searching for a long time, I found the parameter for extracting the hard disk serial number. So I made it up. extract

I. DOM Basics1. node levelDocument-the top-level node. All other nodes are attached to it.DocumentType -- DTD reference (use syntax). It cannot contain subnodes.DocumentFragment -- other nodes can be saved like a Document.Element -- indicates the

YAHOO. lang = YAHOO. lang | {IsArray: function (o ){If (o ){Var l = YAHOO. lang;// If the object has the length attribute, the splice method is also supported,// It is considered as an array.Return l. isNumber (o. length) & l. isFunction (o. splice )

Many of my friends have just started to access the network and don't know what files are suffixed with js. In fact, this extension is. the js file is a javascript file. Why should I use is used to call files. In fact, we often perform webpage

1. event usageProblems:You can directly use the event object in IE, but Mozilla cannot directly use it. For example, This Code cannot work normally in the Mozilla Browser, because there is no default event object in the Mozilla browser, it can

Effect DEMO:Http://www.never-online.net/tutorial/js/upload/Javascript & DHTML instance programming (Tutorial) (iii), elementary example-upload a file control instanceIn the previous chapter, I basically talked about all the basic knowledge to be

Project Practice from the javascript language itselfDulao5 2005-1-15 With the rise of ajax, javascript has gained more and more attention. Importantly, ajax has brought about changes in the web software architecture to some extent. More and more

See a friend like, release downloadClick to download this fileBecause it is made to learn js, I do not like writing code myself :(To continue writing, you can only rewrite it. Check the time.Code transfer to prototype1.4Added the SAVE and open

Script 1: automatically play audio after entering the home page Script 2: when you enter the home page, you can clickScript 3: displays the current time scriptScript 4: displays the last modified time script.Script 5: set as homepage, add as

Go straight to the topic,Table function:1. Add2. Delete3. Get the value4. Dynamic Data Filling5. dynamically set the focus6. The upper and lower buttons on the keyboard control the cell focus.7. Add Regular Expression verification for