JavaScript

First, there are two methods in the html attribute: one with a parameter and the other without a parameter.1. No parameter html (): obtains the html content of the First Matching Element. This function cannot be used in XML documents. But it can be

The following example uses js to implement a page float layer effect, and uses js to read and write cookies in two ways to enable users to disable the display status of advertisements;You can copy the following code to an html file to try the effect.

I recently read three o'reilly books, which we generally call as an animal book (which is a lot like my classmates). Then I always wanted to train my trainer with a column, I tried to make a dynamic table with js and debug it with the firfox browser

I have already introduced some general usage of seaJs, the seaJs library is introduced, define is used to convert to a module, and the use is used to call the module. The external interface exports is used to find the module's external interface and

First:Copy codeThe Code is as follows:Function unique (arr ){Var obj ={}, newArr = [];For (var I = 0; I Var value = arr [I];If (! Obj [value]) {Obj [value] = 1;NewArr. push (value );}}Return newArr;}This method saves the array value to the object.

Copy codeThe Code is as follows:*****************/ Function ScrollText (content, btnPrevious, btnNext, autoStart ){This. Delay = 10;This. LineHeight = 20;This. Amount = 1;This. Direction = "up ";This. Timeout = 1500;This. ScrollContent = this. $

Copy codeThe Code is as follows: name age address Zhang San 23 Beijing Li Si 25 Shanghai Wang Wu 15 Guangzhou Tang Zong 20 Changsha

Method 1Copy codeThe Code is as follows:Var str = "abcdef ";Console. log (str. split (""). reverse (). join (""));Method 2:Copy codeThe Code is as follows:Var str = "abcdef"Var I = str. length;I = I-1;For (var x = I; x> = 0; x --){Document. write

Delete rowCopy codeThe Code is as follows: cell 1 Cell 2 cell 3 Add rowCopy codeThe Code is as follows:

1) when the method does not have a parameter, you can directly use onclick = method name to assign a value.Copy codeThe Code is as follows:Window. onload = function (){$ ('Btntest'). onclick = test;}Function test (){Alert (val );}2) When the method

First, let's talk about the reverse method.The reverse method reverses the element positions in an Array object. During execution, this method does not create a new Array object.For example:Copy codeThe Code is as follows:Var array1 = ['A', 'cc',

Obtain the selected valueObtains the value of a set of radio selected items.Copy codeThe Code is as follows:Var item = $ ('input [@ name = items] [@ checked] '). val ();Obtain the text of the selected select item.Copy codeThe Code is as follows:Var

JQuery provides two methods for development plug-ins:JavaScript codeCopy codeThe Code is as follows:JQuery. fn. extend (object );JQuery. extend (object ); JQuery. extend (object); adds a new method to the class to extend the jQuery class

Traditional encryption technology does not play a major role in today's network security, but every book that talks about cryptography first introduces them, because they are the foundation of cryptography and the history of cryptography. Almost

When you first learn about jQuery event processing, the first example is how to prevent the browser from executing the default action. For example, the following code demonstrates the click event:Copy codeThe Code is as follows:$ ("A. toggle").

Let's look at the Code directly. It's very simple and practical.Copy codeThe Code is as follows: autoresizing textarea  

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Copy codeThe Code is as follows: Copy codeThe Code is as follows: query region Jiang 'an district Jianghan district Qiaokou east and west lake Hanyang district Wuhan economic development Wuchang District Qingshan District Hongshan

Display advertisements by judging the specified directoryCopy codeThe Code is as follows:If (location. href. indexOf ("http://www.jb51.net/codes/")>-1 ){Alert ('OK ');}Copy codeThe Code is as follows:Var Cts = "bblText ";If (Cts. indexOf ("Text")> =