Ajax

Due to language design, JavaScript does not have the concept of "class" in the true sense. The new command is usually used to instantiate an object. The essence of this language function depends on the prototype chain pattern unique to JavaScript.So

IE has many easy-to-use methods and is later copied by other browsers, such as the contains method. If element A contains Element B, true is returned; otherwise, false is returned. The only thing that does not support this method is the opposite of

First, let's take a look at what is NodeList. NodeList and arguments are not common arrays. They have some basic attributes of arrays, but they are not completely arrays. The definitions found in Mozilla are as follows:This is a commonly used type

It is compatible with IE and Firefox and reads local file JS Code. The author does not provide examples, so only part of the code is available.

For... The In statement is used to traverse the attributes of an array or an object (looping the attributes of an array or object ). First define a constructor: Var Status = function (arg) {this. arg = arg;} Status. prototype. getStatus = function

JavaScript judges whether the browser is closed or refreshed. In fact, it seems that there is no practicality, even as a reference document for Js learning. Js smart judgment on whether the browser is closed or refreshed Close or refresh the

In the past, this site introduced a new method for writing HTML and CSS, and introduced the code in a hybrid manner yesterday. NET code and Python and Ruby Code Conversion tools, but the world may be more crazy than we think. IronPython is something

Recently I made a project and used a lot of ajax. There was no cache problem in firefox, but there was a serious ajax cache in IE testing. The data was always lagging behind and I checked some information, I sorted out the Ajax cache solution. 1.

If the selected attribute is not specified for all option elements under the select element, the first option is selected by default. You can use select. selectedIndex to obtain the index of the selected option element. You can use select. options

Nested functions are allowed in javascript: nested function-Liehuo.net

JavaScript clears function code in html text format '/* Function name: Zxj_ReplaceHtml ClearHtml'/* Function Language: VBScript Language'/* Usage: Clear the file HTML format Function'/* Transfer parameter: Content (Note: Content to be cleared)'/*

In this chapter, I will explain how to access an event object. Now we have registered an event handler and want to learn more about the event. We want to know the mouse position when the event occurs, and what keys the user presses. These are all

A hidden frame is defined on the page to submit applications such as generating reports. There was no problem with the previous use. Today, I suddenly did not use it. After debugging, the returned value of parent. frames ("listFrm") is undefined.

JavaScript provides three explicit type conversion functions: eval (), parseInt (), and parseFloat ().Eval () function: converts a string expression to a numeric value. For example, the result of the statement total = eval ("432.1*10") is total = 432

JQuery provides many useful tool functions. These functions are mainly divided into two types: functions that operate the set array and non-set array functions.JQuery operations on non-set array Functions$. Trim (value)This function is simple.

I. What is event bubbling? Trigger a certain type of event on an object (such as clicking an onclick event). If this object defines the event handler, this event will call this handler, if the event handler is not defined or the event returns true,

1. Add the following code to the Flash file, which may be called an action in Flash: Copy to ClipboardReference: [www.bkjia.com] on (release) { Fscommand ("command name", "parameter "); } If you want to pass the value of a text box in Flash to

// Create a new user object and accept an object with many attributes as a parameterFunction User (properties){// Traverse all attributes of the object and ensure that its scope is correctFor (var I in properties ){(Function (which ){Var p = I;//

EgExp object (the most easy-to-understand and in-depth Regular Expression tutorial I have seen so far) JavaScript provides a RegExp object to complete operations and functions related to regular expressions, each regular expression pattern

The character constants in javascript files are closely related to the character encoding in the js file. See the following code: Var strSex = "male "; In GB2312 encoding, assume that another variable, strAxSex, is the BSTR value read from the