JavaScript

2.1 tags. If embedded code is included, only the external script file is downloaded and executed, and the embedded code is ignored.2.3 Document ModeThe first two document modes: Promiscuous mode and Standard mode quasi-standard trigger transition

Cannot enter ChineseOnly numbers and underscores can be enteredOnly numbers and decimal points can be enteredAllow only Chinese characters to be entered One is to allow only numbers and decimal points to be entered.Second, the judgment is more

This article discusses the difference between a variable declaration in JavaScript and no Var, and the scope of variable declarations in JavaScript is in function units, so we often see ways to avoid global variable pollution:(function () {// ...})()

BOM (Browser object model) one, Window objectThe core object of the BOM is window, which represents an instance of the browser. Any object, variable, or function defined by a Web page, with window as its global object, has access to methods such as

a summary of the way Atitit.javascript implements the class1. Implementation of the type of Class :: construction method, prototype mode, construction method + prototype hybrid mode 12. Prototype mode (function mode) Classic type. Implementing a

one, arithmetic operators and assignment operatorsThe arithmetic operators provided by JavaScript have +,-, *,/,%. The value after the operation is assigned by =. For x = x operator y, we can also apply the compound assignment operator, which means

In JavaScript, depending on the scope of the variables are divided into local variables and global variables, the directly defined variables are global variables, global variables can be accessed by all scripts; the variables defined in the function

Before you introduced a HTML5 canvas to achieve the picture glass fragment effect. Today to bring you a JavaScript-based 3D glass crushing effect. As follows:Online preview Source DownloadHTML code:id= "container"> id= " Fragment ">

JavaScript objects can inherit properties from an object called a prototype, and this " Archetypal inheritance " (Prototypal inheritance) is a core feature of JavaScript. In addition to strings, numbers, true, false, NULL, and undefined, the values

just in the program to see a section of JS code, writing extremely clever, selfish thinking if it is written according to the norms, will be able to cultivate the understanding of the language, JS programming ability to improve must be excellent.

Basic drag: 1 newDragdrop({ 2     target 拖拽元素 HTMLElemnt 必选 3     bridge   指定鼠标按下哪个元素时开始拖拽，实现模态对话框时用到 4     dragable 是否可拖拽  

HTML>Head>title>JavaScript Control Web page background Random change color _ Shijiazhuang Carpet Net (www.sjzditan.net)title>Head>BodyOnLoad= "Chgcol (); Pingpong ();">Scriptlanguage= "JavaScript">Hide from JavaScript-Impaired BrowsersvarPOS=

JS basics-array Summary Arrays in JS are considered as an object. How can we suddenly feel that any concept that can be independent in JS can be interpreted as an object? A little skeptical. Continue. First, we will summarize how arrays are used in

Deep Analysis of jQuery. extend source codeDuring website development, some jQuery plug-ins are often written for easy use. Naturally, a key method is indispensable-> jQuery. extend (), which is used to expand jQuery objects. Let's talk about the

JavaScript searches for strings in different order in the array and javascript searches for strings in different order. Requirement: Find the array elements of a string in different order from a group of arrays. Suppose there is an array like

The IE6-IE9 in the tbody innerHTML can not assign a value to the solution, ie6-ie9tbody The innerHTML of tbody in the IE6-IE9 cannot be assigned a value. The reproduction code is as follows: Js Code innerHTML of tbody in IE6-IE9 cannot copy bugs

When the js parent page calls the child page data, the Child page calls back the specific method of the parent page through the parameter passed over the parent page When I wrote the code today, I found that the same subpage needs to be called in

Determines whether window. onload is used multiple times and window. onload Window. onload must have been used by everyone. It is executed during window loading. How can we determine if window. onload is used multiple times? Take a look at the

JS Event Response example for implementing the OCX control JS supports events of the OCX control. When an event defined by the OCX control occurs, JS can capture the event and process the event accordingly. In my personal understanding, it is

Examples of Self-executed anonymous functions in avascript and avascript Self-executed anonymous functions in JavascriptFormat: (Function () {// code })(); Explanation: this is a pretty elegant code (it may be confusing if you see it for the first