JavaScript

DW CS In the onload run recordsetfind.htm found the following Web page special effects error Directory found: directory with the same name as my software under the c:documents and settingsadministratorapplication data directory.Delete on OK

Tip: You can modify some of the code before running This JavaScript allows users to select a region and second place in the world, and then in the region of the country, in particular the Pull-down menu changes select region Asia

The upload.html page is as follows File Upload The Frameupload.js code is as follows /*** The specified label [A or Button,input:button simulation for the File selection button, select the completed file can be uploaded via IFrame]* @author

Browser type ⑴ Browser-specific properties⑵ according to UserAgentBrowser version⑴ according to UserAgent For mobile browsers to judge 1. How to determine whether to use the regular match for mobile terminals, Matches whether navigator.useragent

When doing a page, if you want to do a link click Do not do anything, or respond to click to complete other things, you can set its properties href = "#", however, this will have a problem is that when the page has a scroll bar, click will return to

Example 1 The code is as follows Copy Code function Public_getparentbytagname (element, TagName){var parent = Element.parentnode;var uppertagname = Tagname.touppercase ();If this element is not the desired tag, continue

Closures are a way to access and manipulate external variables within a function, and in general we define variables outside the function for use within functions. The code is as follows Copy Code var a = 1;function fn

settimeout (expression, interaction time)The delay time/interaction time is in Hao seconds (1000ms=1s) settimeout at execution time, after a specified time delay after loading, execute an expression once SetTimeout at execution time, it executes an

Sample code: The code is as follows Copy Code test1 test2 In JS can be used: The code is as follows Copy Code document.getElementById (' Test '). InnerHTML: That is,

Syntax uses onerror default has three incoming parameters: msg: Error messageURL: File where the error residesline: Wrong line of code, integral type123 Window.onerror = function (msg, URL, line) {//some code};For form, the parameters can be

The foreground call is as follows The code is as follows Copy Code onclientclick= "Return Fuccheckjpgandgif" (Form1. File1.value); " --where File1 is the upload file control Function code: The code

Example 1 The code is as follows Copy Code New Document Refresh, close, rewind, F5 test Although the onbeforeunload event has been eliminated by the Web Standard, this is the only event that can be achieved.

In JavaScript, the double and int types are all viewed as number objects, so either typeof 1 or typeof 1.0 returns number. So we can let the JavaScript explain the engine inside out without having to go to the int or double type. • If you want to

Naming conventions 1. Variable names must be lowercase letters.2. The naming of classes uses camels to name the rules, for example: Account, EventHandler3. Constants must be declared in the object (class) or in the front of the enumeration variable.

1. The charCodeAt method returns an integer that represents the Unicode encoding of the specified position character.Strobj.charcodeat (Index)DescriptionIndex The zero-based number of the character to be processed. A number with a valid value of 0

1. Set Timer Syntax: setinterval (function, time) Attention: function cannot be written with parentheses SetInterval (fn,1000)//correct

If you want to JS access to the functions in flash, you need to register a callback function with Addcallback, let JS to call (AS2 example) The code is as follows Copy Code Import flash.external.*;var methodname:string =

In this blog we talked about the form object and the differences between different browsers when writing JavaScript code and some knowledge of using regular expressions in JavaScript, and then we did two exercises to illustrate these points of

First read a piece of code The code is as follows:Copy code The address of this ajax request cannot be accessed normally.In this code, the value of jQuery ("# my_input"). val () is assigned to the value, and you want to introduce the value

JavaScript is not considered by many people as an object-oriented language for many reasons. For example, JavaScript does not have classes and cannot provide traditional class inheritance. For example, JavaScript cannot implement information hiding,