JavaScript

Method 1Copy codeThe Code is as follows:Function clone (obj ){Var o;Switch (typeof obj ){Case 'undefined': break;Case 'string': o = obj + ''; break;Case 'number': o = obj-0; break;Case 'boolean': o = obj; break;Case 'object ':If (obj = null ){O =

XHTML structure:Copy codeThe Code is as follows: Please wait... Introduce the myFocus version of js and pay attention to the order when introducing js, because this is related to the order of js loading on the page:Copy codeThe Code is

For example: Hello , world! Code: alert (document. getElementById ("test"). innerText)"Hello, world!" can be obtained in IE and Chrome !", However, in Firefox, "undefined" is obtained ". It is originally the innerText attribute that does not

1. Always use 'var' In javascript, variables are not in the global scope or function scope. Using the "var" keyword will be the key to keeping the variables concise and clear. When declaring a global or function-level variable, you must always

The document. getElementsByName (name) method is used to read the object array. The usage is as follows:Var elements = document. getElementsByName ("role ");("Role" is the name of each CheckBox in the CheckBox array)For: getElementsByName example

Because loading content is slow, users may accidentally click twice on li, so they will request twice. This is what we don't want to see.Today, I sent two demos to the javascript-jquery group by copying the clicked li node.Obviously, the function is

Official explanationA closure is an environment expression (usually a function) that has many variables and is bound to these variables. Therefore, these variables are part of the Environment expression.General ExplanationAll functions in Javascript

:Animation effects:The effect of this set of ADS is that after the page is opened, the image will be automatically played, from 1 to 5 a total of five images, if the label is in the lower right corner of the 1, 2, 3, 4, 5 list, you can switch to the

Copy codeThe Code is as follows:/*** Format a number* Author: Z, Mingyu* Parameters:* PrmNum (Number): Number to be formatted* PrmPtn (String): formatting rule, for example, #,## 0.00** PrmNullValue: The result returned when the number to be

Relatively rough and simple. For more information, see. Paste the following content:This is the main content of the first ppt. I will not post more details about the specific items. If you are interested in these aspects, you can download them.

Click () object. click () enables the object to be clicked.Whether the closed object window has been closed; true/falseClearTimeout (object) clears the set setTimeout objectClearInterval (object) clears the set setInterval objectThe confirm ("prompt

Solution,1. Mozilla provides a non-public (unwritable ented) function: Copy codeThe Code is as follows:// For Mozilla browsersIf (document. addEventListener ){Document. addEventListener ("DOMContentLoaded", init, false );}2. for IE browsers, you can

The specific solution is as follows:1. The clientHeight, offsetHeight, and scrollHeight attributes of the document. body object under IE and FF.ClientHeightIn IE and FF, this attribute is no different. It refers to the visible area of the browser,

[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]When I am working on an OA Attendance Program, I need to dynamically display the server time so that employees can know whether they can get off work.

If lightbox is already used on your website, or the following experiences are also appropriate (provided that JQuery is used ).1. specify the conditions under which Lightbox effects are used Add the following statement to the website's js file:Copy

It is as follows:Instructions for useYou need to use the jQuery library file and the formValidation library file [download the instance Code]Http://jquery.com/At the same time, you need to customize the CSS style for displaying the error message.Use

adsfsdf dfdfsdf adsfsdf dfdfdf dfdfdfdf adsfsdf dfdfdf dfdfdfdf This code is used to open a div by clicking a button and clicking the mouse in the blank area of the page to hide this divFunction document. onclick (){}In this

I personally think the friend selector is a complicated component that involves front-end and back-end integration. Here I will mainly introduce how to implement the client segment and back-end data. I use several simple ASP pages to provide it. 1.

There are many methods, for example:First: (use the charCodeAt method of the String object)Copy codeThe Code is as follows:String. prototype. getBytesLength = function (){Var length = 0;For (I = 0; I ICode = this. charCodeAt (I );If (iCode> = 0 &

My colleague recommended the Jcrop plug-in to go to its official site. Basically, you can use this plug-in by referring to several demo files. After studying at night, I would like to briefly summarize the following. It is also convenient for