JavaScript

Javascript Object-oriented Inheritance. For more information, see. Class inheritance implementation mechanism in prototype framework The Code is as follows: // Add a static method for the Object class: extendObject. extend = function (destination,

There is a way to quickly obtain the location of web page elements. That is, use the getBoundingClientRect () method. It returns an object, which contains four attributes: left, right, top, and bottom, which correspond to the distance between the

JavaScript couplet advertisement and floating advertisement encapsulation )/* Couplet advertisement call The first parameter is ID, the second parameter is image, and the third parameter is the distance from the advertisement to the top, The fourth

Today, I made a summary of the JS event, mainly about the problematic object names of FF and IE compatibility. addEventListener ("event name (not ON)", function name, true/false); (FF) Object Name. attachEvent ("event name", function name); (under

You can add an attribute or type selector to the & lt; tr & gt; element, and then use CSS settings to implement a two-color table. However, if the table is long, it is really troublesome to add one element at a time. In addition, such code is not

Interaction between dropdownlist (display and hide) The Code is as follows:

Js Code that dynamically sets the layer position based on the mouse position. The Code is as follows: ScriptVar index = 0; // It is displayed when you click the mouse for the first time. If you click the mouse again, the layer is not displayed./***

First, let's talk about the background. This code is used on a multi-condition query interface. Originally, this query condition was provided by a drop-down list. However, because the data volume in the drop-down list is too large, it is

Today, I am talking about the toggle in JQuery. The article involves some problems. I hope you can help me solve them. Today we will focus on a toggle (fn, fn ,....) A function is mainly used to switch the rotation operation of an event. For example,

Because jsurl uses the default character set encoding rules of js during value passing, we must convert it to our own encoding specification. in websphere, url = encodeURI (url) is used. // two encodeURI tests are successful, the first Conversion

Using string constants directly is faster than using global variables, but creating regular expressions is much slower than using global variables. var r, s = "this is a very looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong

When the mobile layer is used, the input box in it cannot be used. The following is a reference for the solution. Recently, I was working on a project that involved the mobile layer application. The result was that the mobile layer was used, but the

During AJAX application development, we usually like to save the JSON format string returned by the server as JavaScript code in the callback function of the client and save it as a variable, to facilitate the use of the returned data. The common

In ExtJS, to maximize the Window, you only need to set the maximizable attribute to true. Click the maximize button to maximize the form. The minimal operation is similar to setting the minimizable to true, you can see the form minimization button,

Tables with scroll bars have fixed titles and sorting functions. Although some problems have been tested, the programming logic is clear. For more information, see. The Code is as follows: // Usage requirements:// 1. Name the Class in the table

When a form is submitted to a cross-origin url in iframe, how can I determine whether the submission is successful? This is basically difficult because of browser security sandbox restrictions, we cannot obtain information about different domain

Js mouse drag object, allowing any div to achieve the drag effect, the need of friends can refer. Js mouse drag object: The Code is as follows: // Define the mouse drag objectDrag = function (a, o ){Var d = document; if (! A) a = window. event;If

If the element is visible, switch to hidden. If the element is hidden, switch to visible. Toggle () Switches the visible state of an element. If the element is visible, switch to hidden. If the element is hidden, switch to visible. ------------------

FireFox does not have window. event, so it is very troublesome to compile the event processing function in FireFox. To obtain the event object, you must declare that the first parameter of the time processing function is event. Generally, to be

Basic JavaScript variable knowledge 1. Case Sensitive