JavaScript

The principle is very simple. JS dynamically constructs a div layer and inserts it into the body. Then, by adjusting the CSS attribute of position to absolute or fixed, it disconnects it from the location of the original document stream. Then it

Copy codeThe Code is as follows:Var classA = function (){This. prop1 = 1;}ClassA. prototype. func1 = function (){Var that = this,Var1 = 2;Function (){Return function (){Alert (var1 );Alert (this. prop1 );}. Apply (that );};A ();}Var objA = new

The KeyCode value collected on the internet is convenient for you to find:Keycode 8 = BackSpaceKeycode 9 = TabKeycode 12 = ClearKeycode 13 = EnterKeycode 16 = Shift_LKeycode 17 = Control_LKeycode 18 = Alt_LKeycode 19 = PauseKeycode 20 =

Handling IE and firefox eventsIn ie, event objects are saved and maintained as global variables. All browser events, whether triggered by usersOr other events will update the window. event object. Therefore, in the code, you only need to easily call

As for the description of filter conditions, pattern matching is a common and useful method. In JavaScript, it is quite convenient to use JSON to describe the mode. So let's make a JSON mode matching tool.Case DesignAs a dispatcher, we only need two

Policy & CaptureIt is too easy to implement policy and capture. We only need to save the handler passed by capture, and then find the matched handler in policy.Copy codeThe Code is as follows:Var filterHandlerBundles = [];Dispatch. capture =

Option_check.js code:Copy codeThe Code is as follows:/*************************************** **The call method is as follows:Jselect ($ ("# inputid "),{Bindid: 'bindid ',Hoverclass: 'hoverclass ',Optionsbind: function () {return hqhtml

Arrays are often used in js. For example, if multiple inputs with the same name are generated dynamically, You need to determine whether the input is an array during submission.If (document. mylist. length! = "Undefined") {} This usage is

The pop-up window and drag-and-drop effect of Baidu space looks quite good. Currently, many well-known websites use this technology. Next I will send out my down js code. I have analyzed some of it, but there are still a lot of things that I don't

It can highlight various program source code syntaxes on the webpage. Supports various popular programming languages: C #, CSS, C ++, Delphi, Java, JavaScript, PHP, Python, Ruby, SQL, Visual Basic, XML/HTML:

Crir = {Init: function (){ArrLabels = document. getElementsByTagName ('label ');SearchLabels:For (var I = 0; I // Get the input element based on the for attribute of the label tagIf (arrLabels [I]. getAttributeNode ('for') & arrLabels [I].

Below are some examples of direct communication between Flash and HTML files using Javascript. Each example has a simple step.This article discusses three basic Flash/Javascript communication methods:Javascript-to-Flash Communication-use the

IntroductionIn this chapter, we will introduce closure, a common topic in JavaScript ). In fact, we have all talked about closures. However, we should try to discuss the closure from a theoretical point of view to see how the closure in ECMAScript

JavaScript Interview Requirements: the following questions must be selected from one to four, three questions, implemented using native code, cannot be usedIn any framework, the fifth question is selected.1. display images in a fixed area of the

At this time, encodeURIComponent and decodeURIComponent appear, which can fully encode and decode the URL. However, if some transcoding tasks such as those used by the search engine fail to be implemented, it is okay, PHP officially released a

1. application case:Copy codeThe Code is as follows:Var Mouse = function (){// Look! No that = this!This. position = [0, 0];If (document. addEventListener ){Document. addEventListener ('mousemove ',?); // This. move?} Else if (document. attachEvent )

When writing web pages that process xml, it is often a headache for browser compatibility. So I encapsulate common xml operations as functions. After a period of improvement, it is very stable and comfortable to use.Functions have --Xml_loadFile:

The full use of object-oriented design ideas in JS can greatly improve code reuse, reduce coupling between modules, and improve logical hierarchy and parallel development. The following describes my understanding in several steps.I. Data Types and

Copy codeThe Code is as follows: Let's talk about the phrase T. constructor = this in the above Code. I feel that this sentence has no practical effect,Itself T. constructor should be Funtion. Why should we set it as a Funtion instance,Copy codeThe

Displaying table data involves some things, such as field display hiding, data status, and paging. Because our company's products involve a lot of table data display, and each table has a large number of fields, in the course of work (several