JavaScript

Copy codeThe Code is as follows: click to download

Copy codeThe Code is as follows: select the drop-down menu select one or more items, click add or remove (shift or ctrl to select multiple items), or double-click the selected items to add or remove them. & Lt; td width = "40%" & gt; Beijing

Declare the application of this method to avoid misleading everyone.For example, in the blog, we cannot modify its source code,You can only find a way to monitor the appearance of elements.So the following method is used without modifying the source

When it comes to keyword search, the first thing that comes to mind is to use character functions such as indexOf and replace, with a maximum of some regular expressions. although it is easy to implement, have you carefully considered the efficiency

Let's take a look at the effect: Html source code:Copy codeThe Code is as follows: dynamic menu change Province: Please Choose Province HeBei ShanDong City: Area:Javascript source codeCopy codeThe Code is as follows:$ (Document). ready

In fact, there is no new knowledge point, just to make it easier for other friends who need it to read it. It is also an accumulation for themselves, so we can only talk about JavaScript, and the old birds can enjoy it.Before entering the topic,

[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute] Copy codeThe Code is as follows:// Date$ ('. Date'). datepicker ({ChangeYear: true,ChangeMonth: true,MinDate: null,MaxDate: null,OnClose: function

1. After running this function, you can use the alias $ again. In the scope of this function, $ is still used as the alias of jQuery.JQuery Code:Copy codeThe Code is as follows:JQuery. noConflict ();(Function ($ ){$ (Function (){// Use $ as the

Jquery is an extension and encapsulation of javascript, which makes javascript easier to use. What people say is jquery is to use less code to perform more functions beautifully. Comparison of common JavaScript and JQuery Methods1. Differences

Full arrangement is a time complexity: O (n !) I gave a lecture to the students two days ago and accidentally thought about this question. I came back and summarized that seven algorithms can be used to solve the problem. Among them, dynamic loops

Copy can be used directly!Copy codeThe Code is as follows:// Parent windowFunction onClick (){Var k = showModalDialog ("View/WriteKey. jsp", included page"Newwindow", fixed values"DialogHeight: 200px;DialogWidth: 400px; WidthToolbar: no; whether a

Copy codeThe Code is as follows: select enterprise product Copy codeThe Code is as follows:QueryString = {Data :{},Initial: function (){Var aPairs, aTmp;Var queryString = new String (window. location. search );QueryString = queryString. substr (1,

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1. Get the window object of iframeCross-origin access restriction exists. Chrome: iframeElement. contentWindowFirefox: iframeElement. contentWindowIe6: iframeElement. contentWindow Article Iframes, onload, and document. domain says "he iframe

Copy codeThe Code is as follows: Copy codeThe Code is as follows:$ ("# Img_a"). attr ("src", "login_image/B _2.jpg "); // ========== Another important thing is to use the following attributes to remove the dotted box after clicking on the

Recently, cainiao watched the js video of the wonderful class and learned a little bit of knowledge. Here I will summarize that the Code is a bit bloated and I don't know how to optimize it at the beginning, you can give me some advice. Thank you

Copy codeThe Code is as follows:// Open the modal windowFunction dialog (obj ){If (obj. url = undefined | obj. url = null ){Throw new Error ("please set obj. url ");}Var url = obj. url;If (url. indexOf ("? ")! =-1 ){Url = url + "& r _ =" + Math.

I recently discovered the drag-and-drop effect on web pages. I personally think it is a good user experience. I took some time to study it. The principle is quite simple, below is a simple drag-and-drop jquery udf I wrote.Jquery code: fun. jsCopy

1. jQuery fadeIn () is used to fade hidden elements.Syntax:$ (Selector). fadeIn (speed, callback );Instance:Copy codeThe Code is as follows:$ ("Button "). click (function () {$ ("# div1 "). fadeIn (); $ ("# div2 "). fadeIn ("slow"); $ ("# div3 ").

Note: Jquery needs to be introduced.If the upload function is full, import jquery-uiand jquery-ui.css.: Js Code:Copy codeThe Code is as follows:$ (Function (){// Menu listVar menu_list = $ (". menu-list ");// Work zoneVar working = $ (". working