JavaScript constructs a XMLHTTP object pool to rationally create and use XMLHTTP objects _javascript techniques

If we use AJAX technology frequently on the client side, we have to create XMLHTTP objects multiple times. Of course, as you know, we can improve the way we create, such as using global variables to cache an instance (client-side singleton mode?!). )

JavaScript Event Learning Chapter II event browser compatibility _javascript Tips

The events presented here, when they occur on a certain HTML element, can be identified by most browsers. That is, the browser looks for the script for the event handler that you registered for this HTML element, and will be executed immediately. At

JavaScript also acquires KeyCode code _javascript tips in IE and Firefox at the same time

Html Copy Code code as follows: Javascript Copy Code code as follows: function Submit1 (e) { var Isie = (document.all)? true:false;//whether the IE kernel or Mozilla var key; if (Isie) Key = Window.event.keycode;//ie Use

JavaScript under dynamic This and dynamic binding instance code _javascript tips

Then the function is broken into two parts stored in the object, one is its function name (key), one is the function body (value), then the function of this generally refers to the object of the function. But that's general, when we call a function

Javascript constructors, public, private privileges, and static member definition methods _javascript tips

Copy Code code as follows: Constructors function MyClass (message) { Public properties this.mymessage = message; Private property var _separator = '-'; var _myowner = this; Private method function ShowMessage () { alert

JavaScript Alert general beautification class _javascript skills

function Salert (msg,boxtype,func,msgtitle) Salert (' Information content ', 1, ', ' Information title ') @msg: Prompt For information content @boxtype: 1 for Pop-up box, 2 for Confirmation box, 3 for Prompt box @func: Functions performed when a

JavaScript exactly gets style attributes (top) _javascript tips

Jquery,mootools,ext such as the library in this part of the implementation of a very difficult, intertwined with a large number of methods, so want to make this part of the difficult to dig out. After in-depth study of their implementation,

JavaScript showmodaldialog modal dialog box using instructions _javascript tips

1. The standard method Copy Code code as follows: Example: click 2. It is to be noted that Firefox does not support this feature, it supports the syntax is Copy Code code as follows: window.open ('

The difference analysis _javascript skill of JavaScript and DropDownList

For example, a control is rendered as a anchor control, and the DropDownList control here is rendered as a normal select control, A Web server control DropDownList and a common select control (primarily for comparison) are defined in the following

JavaScript text up and down interval scrolling code compliant with Web Standard script home revision _javascript tips

First text up and down interval scroll correction version compliant with Web Standard text interval scrolling JS code [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] There are

JavaScript simple drawer effect of the implementation code _javascript tips

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Css Copy Code code as follows: aspx Copy Code code as follows: " style= "Display:none;" > "Onclick=" var Leftslider = new Slider (this,1,50,85,20,1,20); Leftslider.show (); this.style.display= ' None ';

A summary of common traps in JavaScript _javascript skills

All the functions you create are case-sensitive. Single quotes (' Strings ') and double quotes ("strings") have no special distinction in JavaScript, and can be used to create strings. But as a general rule, most Web developers choose to use single

only [] () +! symbols are sufficient to implement almost arbitrary JavaScript code _javascript techniques

Please test under Firefox Look at the following example: JS Code is equivalent to ([][(! []+[])[!+[]+!+[]+!+[]]+(!! []+[][(! []+[])[+[]]+([! []]+[][[]])[+!+[]+[+[]]]+(! []+[])[!+[]+!+[]]+(!! []+[])[+[]]+(!! []+[])[!+[]+!+[]+!+[]]+(!! []+[])[+!+[]]

JavaScript Manipulating cookies articles (setting, removing cookies) _javascript tips

The following is an article abroad. Http://www.jb51.net/article/20553.htm Copy Code code as follows: var sel = new Object (); var sel_num = 0; function Getcookieval (offset) { var endstr = document.cookie.indexOf (";", offset); if

JavaScript implementation of Web page jump and Page transfer value method _javascript skills

But sometimes, when an event is triggered, we first do some operations, and then jump, at this point, we need to use JavaScript to achieve this jump function. The following are the specific practices: One: Jump to a new page, and when opened in a

JavaScript determines whether the specified string is a valid number _javascript technique

Such a check has met a lot before, but each time is resolved on the end, no record down, and then the next encounter will spend a lot of time to write. Things need to accumulate, now special record down, hope that this kind of work no longer repeat

Application of SQL statement in JavaScript to realize _javascript skill

Like the sort of JavaScript array There are also the deletion and grouping of the data in the array. So, later in the interest to come up. Out of hand. Write a SQL library that can be applied in JavaScript Later thought, how can not use JavaScript

JavaScript Subform Parent Form Mutual value method _javascript tips

Cloud-dwelling community to streamline the use of version, generally many CMS have some such functions. Dedecms in the selection of related articles is also used in such a function. Here is the specific code. Parent page Core Code: Copy Code

JavaScript Trim three ways to remove string spaces (with code detailed) _javascript tips

method One: Regular replacement recommendation Personally think the best way. Using regular expressions, this is the core principle. The following is the original code Copy Code code as follows: Let's take a look at what

The difficulty of numerical comparison in JavaScript shows _javascript skill

1, the number of long, in C # Legal long integer number in JavaScript unexpectedly ... Look at the following lines of simple code: Copy Code code as follows: var a = 2010060612120909191; Id1 generated by Time var B = 201006061212090

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