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ZccstSee how it's written.Jquery.extend ({Prop: ""Method:function () {}});As you can see, these methods are static properties and methods of jquery (also known as tool methods) that can be either directly available to the user in the future or used internally.The specific implementation of the tool properties and methods are (also labeled which are used internally)Jquery.extend ({expando: Generate unique JQ string (internal)noconflict (): Conflict pre

= '; Docelem.insertbefore (Fakebody, Refnode); bool = Div.offsetwidth = = 42; Docelem.removechild (Fakebody); return {matches:bool, media:q}; };}) (document); ... if (!! href iscss !parsedsheets[href]) {//SELECTIVIZR exposes CSS through the Rawcsstext expando if (Sheet.stylesheet sheet.styleSheet.rawCssText) {//sheet.stylesheet.rawcsstext can not understand, it is convenient select Ivizr and Respond.js, http://selectivizr.com/tests/

some of the custom expando properties. Without this problem can be used, not generic, I do not recommend the use of this method. 3. Call the Reset () method of the form form element. The reset () method of the form element resets all the input elements within the form, which is not what we expect, so you can work around creating a new form object, putting the file INPUT element in and then resetting it, and then removing the file INPUT element and

the previous key? Jquery.data (Element,[key],[value]) does not cause overlays as long as they are bound to different objects. Is that right? Let's take a look at their source code. First look at the Jquery.data (Element,[key],[value]) source code. JS Code: Copy Code code as follows: Jquery.extend ({ Cache: {}, Use with caution uuid:0, Unique for each copy of JQuery on the page Non-digits removed to match rinlinejquery expando: "J

" types.charat (0) = = ".") { types = Types | | ""; For (type in events) { JQuery.event.remove (Elem, type + types); } Return } We found that in is a recursive call. If so called JQuery.event.remove (el, ' click ', fn) Then it's not going to go to the side of the recursive, but directly into the while loop Copy Code code as follows: while ((type = types[i++])) { ... } This is the standard process for deleting events. The approximate steps are as f

, find the front of the" L "pairs of words, the letter behind it right, select" Store as Global Variable "then the console to play a Tempx object, it is loaded with the cache of Dongdong." Suppose it's called Temp1. The Temp1 has a get method that can directly retrieve its cache object. If you want to see the ID of the object that binds the event is called ClickMe. That executive Temp1.get (' #clickMe '). Get (0)) (or Temp1.get (Document.queryselector (' #clickMe ')) will play the same thing as

Many students like to store data on htmlelement properties in projects, such as Copy Code code as follows: Add the custom Attribute "data" and the value "some data" to the div in the page. Subsequent JS code in the use of getattribute to obtain. jquery provides a data/removedata method from 1.2.3 to store/delete data. 1.6.1 Code Fragment Copy Code code as follows: Jquery.extend ({ Cache: {}, Use with caution uuid:0, ... }); That is, add

The code in the data section starts at 1381 lines. The first few lines of critical code: Copy Code code as follows: Jquery.extend ({ Where data is stored, the key to achieve the core Cache: {}, Seed for allocation ID uuid:0, To distinguish the data stored by different jquery instances, use the prefix +jquery version number + random number as key expando: "JQuery" + (JQuery.fn.jquery + math.random ()). Replace (/\d/g, ""),

features more to improve performance. Bigtable is a distributed storage system for managing structured data (see Resources for more information). It will also use its Memcache API to make more improvements. Another set of enhancements that we'll implement in this article will handle the user experience. Improve the user interface by adding Ajax elements to your application. Not only will Ajax be used, but some data modeling and caching enhancements will be bound to further improve the performa

First of all, to wait for the release of yesterday's friends say sorry. The 1.2PR1, which was scheduled to be released yesterday, was postponed to today, 1.1.5 released as official version number. The following features are mainly added 1. Separate the seed module from the core to increase the loader. With loader, you can use all of Kissy's features by simply introducing Seed-min.js (9.5 KB) into the page. For example, the Switchable module can be invoked as follows: Kissy.use ("switchable",

expando: "JQuery" + (JQuery.fn.jquery + math.random ()). Replace (/\d/g, ""), //whether there is an associated data hasdata:function ( {}, //set, read custom data or internal data data:function (elem, name, data, pvt) {}, //Remove custom data or internal data Removedata: function (Elem, name, pvt) {}, //setting, reading internal data _data:function (elem, name, data) {},// whether data can be set

degradation). The semantic structure is complete in the basic HTML level, and JS is to enhance the interaction behavior and control the presentation form. If each of us accesses the corresponding wrapper object in the way of $ (' #my '), where is the state variable that needs to be kept for a long time? jquery provides a unified global data management mechanism. Get Data: Copy Code code as follows: $ (' #my '). Data (' myattr ') To set the data: Copy Code code as follow

= "Prototype";Dom. Event = function (src) {if (!this.preventdefault) {Return to new DOM. Event[fn].init (SRC);}};function Returnfalse () {return false;}function Returntrue () {return true;}Http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.htmlDom. EVENT[FN] = {Init:function (SRC) {If the event object is passed inif (src src.type) {This.originalevent = src;This.type = Src.type;If the event type is passed in} else {This.type = src;}This.timestamp = new Date (). valueof

); //This is a shortcut to avoid jQuery.event.remove overhead } else { jquery.removeevent (elem, type, data.handle);}}} 3. If the cache is not removed by JQuery.event.remove, manually remove the cache. Which IE needs to do some compatibility processing, and will eventually save the history of deletion as Core_deletedids Remove Cache if (cache[ID) { delete cache[id] When jQuery.event.remove has not removed cache; IE does not allow deletion of

Explorer and the between FT JScript engine, especially in scenarios where a webpage defines a expando and the page is refreshed. If a legacy application no longer functions with these changes, the Feature_manage_script_circular_refs FEATURE can disabl e these improvements. By default, this feature are enabled for Internet Explorer and for applications hosting the WebBrowser control. To disable this feature by using the registry, add the name of your

viewing properties, jquery1.x can perform the binding of the output elements directly on the console $.cache[$('#clickMe').get(0)[$.expando]] , instead of first looking at the value of the jqueryxxxxxxx attribute on the element. 2. After a review and test. One of the most current and jquery1,jquery2 ways to do this is to simply type in the console and lose everything that is $._data($('#clickMe').get(0)) bound to the element. However, the comments f

Dhtml| Tip: This article describes the significant performance impact of some DHTML features and provides some tips for improving the performance of DHTML pages. Directory Brief introduction Batch processing of DHTML changes Using innertext To add a single element using the DOM Extending options in a SELECT element Updating tables with the DOM Write once, use multiple times Do not use dynamic properties too much Data binding is effective Do not set the Exp