Extjs tabpanel limit the number of tabs Implementation ideas and code

Copy codeThe Code is as follows:Var tabIndex = 'shouye ';Var tabIndex2 = 'shouye ';Var tabIndex3 = 'shouye ';Var tabIndex4 = 'shouye ';Var tabIndex5 = 'shouye ';Var tabIndex6 = 'shouye ';Var tabIndex7 = 'shouye ';/*** Add a window to the TabPanel

JS gets the browser version and name implementation function

Copy codeThe Code is as follows:// Obtain the browser name and version informationFunction appInfo (){Var browser = {Msie: false, firefox: false, opera: false, safari: false,Chrome: false, netscape: false, appname: 'unknown ', version: 0},UserAgent =

How to export data in excel using jquery

Because javascript itself does not have the permission to operate local files, unless ActiveX is used, it is troublesome and insecure and does not need to be used at all. therefore, it is impossible to obtain the local file for saving data from the

Select label simulation/beautification method using JS external plug-in

the appearance of tags is annoying. Different browsers are inconsistent. for IE alone, a single version has a look and cannot be modified with CSS. Here I will share my beautification Method for .Advantage: is still used. It only changes the

Click to hide the js Code in the left or right column of the page.

Click to hide the Left or Right columns of the page (in the same TABLE)Copy codeThe Code is as follows: 3 Screen switching Click the button that hides the left and right columns as an image, modify JS, and add ID to IMG. Here id = aa can

The jQuery pop-up layer is always vertically centered relative to the screen or current window

The pop-up layer is always something that must be done at the front end. In general, if the pop-up layer has a fixed height and width, you can do it with a style, however, if there is no fixed height or fixed width or fixed height or width, we need

Two common methods and code for de-duplicating javascript Arrays

The first method is more common. Ideas:1. Create a new array to store the results2. In the for loop, an element is extracted from the original array each time, and indexOf is used to find whether the element exists in the new array.3. If not, it is

Operations on js Arrays

I have been using js for a long time, but I have never gotten into the js array form. Occasionally, it is a simple string. split (char ). During this period of time, there were a lot of projects that used arrays. I thought I could not help myself as

Basic Introduction to javascript Time Functions

Javascript Time Functions Javascript provides the Date object for time and Date calculation. The Date object has multiple constructors: New Date () // current timeNew Date (milliseconds) // The number of milliseconds from the start time to January 1,

JQuery. validate common methods and issues needing attention

1. use other methods to replace the default SUBMITCopy codeThe Code is as follows:$ (). Ready (function (){$ ("# SignupForm"). validate ({SubmitHandler: function (form ){Alert ("submitted ");Form. submit ();}});});AjaxCopy codeThe Code is as follows:

Js front-end display back-end JAVA data response by PAGE

I haven't written any code for a long time, and my hands are itchy. The implementation of some functions of my younger siblings has really affected the project progress, so I wrote a piece of code myself.Function: Display js frontend by PAGE +

Introduction to rotating images at any angle and JQuery plug-in

Introduce the jquery. rotate. js file below, and then use $ ("selector"). rotate (angle); to rotate any angle,For example, $ ("# rotate-image"). rotate (45); Put this sentence in $ (document). ready (function () {});It is to rotate the image with id

Introduction to void operator syntax and usage in javascript

Void is an operator in javascript. The syntax is as follows:Javascript: void (expression)Javascript: void expressionVoid calculates the value of the expression, but discards the return value of the expression.This expression is often used to convert

How to pass values between Iframe in JS

1. On the iframe subpage, obtain the elements of the parent page: A> retrieve parent parent.doc ument, which is the object in the document of the parent page; B> if you want to obtain the method in the parent page js: window. parent. xxxx (); xxxx

Small Example of. net and js capturing text box return key events (compatible with multiple browsers)

Js: Copy codeThe Code is as follows:Function bubufx_enterpress (e ){Var keynum;If (window. event) // IE{Keynum = e. keyCode;}Else if (e. which) // Netscape/Firefox/Opera{Keynum = e. which;}If (keynum = 13 ){SoJS (); // enter the event processing

Javascript + CSS makes the DIV layer (minimized, drag/drop/sort) function to implement code

Copy codeThe Code is as follows: DIV layer minimization and drag/drop sorting made by JS + CSS & Lt; table width = "100%" & gt; Baidu click here to drag - x address: http://www.baidu.com keywords: Note: & Lt; table width = "100%" & gt;

Overview and case applications of top/parent/frame in js

Reference Method top:This variable always refers to the browser window at the highest level. If you plan to execute the command from the highest level of the split window, you can use the top variable.Parent:This variable refers to the parent window

A complete summary and case of document. all

I.Document. all is a collection of all elements on the page. For example:Document. all (0) indicates the first element in the page.II.Copy codeThe Code is as follows:Document. all can judge whether the browser is IEIf (document. all ){Alert ("is IE!

Js to obtain the content of the row selected by the Gridview

Copy codeThe Code is as follows:// Obtain the value of the specified column in the selected row in the gridview.Function Select (){// Obtain the mouse clicking ElementVar e = eventsrcElement;// Obtain the row number of the row where the element is

Use JavaScript to dynamically set styles for code implementation (2)

You can refer to the previous version of http://www.jb51.net/article/33555.htm, which is a little bad, that is, if you want to change the style, you may have to replace it with search.Therefore, Insus. NET writes another method for implementation,

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