expando

} ==================================== Gorgeous demarcation line ====================== ======== Thanks for the inspiration provided by Ivony! The Code is as follows: Function isWindow (obj ){If (typeof obj! = "Object") return false; // it must be an objectVar expando = "dom" + (new Date-0) // generate a random variable name// Globally parse the code. The eval of IE is only valid for the original scope.// See http://www.javaeye.com/topic/519098//

resources become fewer and fewer. To demonstrate this problem, we will overwrite the content in the Script element to cause a large amount of memory leakage ".Loop referenceLoop reference is basically the start of all leaks. Generally, the script engine processes cyclic references through the garbage collector (GC), but some unknown factors may prevent the release of resources from the environment. For IE, the status of some DOM object instances is unknown to the script. The following are

Many users prefer to store data on the htmlelement attribute in projects, such Added the custom property "data" and value "some data" to the DIV on the page ". Subsequent JSCodeGetattribute. Jquery provides the data/removedata method from 1.2.3 to store/delete data. 1.6.1 code snippet Jquery. Extend ({cache :{}, // please use with cautionuuid: 0 ,...}); That is, a static field/method is added to jquery, including jquery. Cache/jquery. UUID/jquery.

it to execute]IE will pop up false, and other browsers will pop up true. However, all browsers are unified as follows: [Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]Are there any rigorous judgments? Do not forget that window references itself in an infinite loop. It should be said that it references the previous one. Therefore, we can: [Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]Finally

I think this method is not a private Implementation of IE. It can achieve perfect copy in IE, And the other seems to be a little strong, it is similar to the replacenode naming method. In IE, clonenode can copy all attributes, attributes, and expando attributes of a node, and all events ), the standard browser can only copy the first two. However, unfortunately, sometimes the standard browser cannot tell which one is, and once it is regarded as a cust

Native JS does not support anonymous uninstall events, jquery is useful for developers to support anonymousThoughts on anonymous EventsFirst she will determine whether the target is an element or an object, and if it is an element, mark the element with an identifier (expando) and then the value is a GUID generated and a cache is created under the cache object, such as: $.cache={ ' 2 ': { data: {}, events: {}, handle:function () {}} , } Then you will

scriptscope. The following uses ironpython as an example to describe how to integrate dynamic programming language code in a program developed in C #4. First, you must create a scriptruntime object, which is a top-level object used to "embed" the runtime environment of a specific dynamic language in A. NET application domain: Scriptruntime pythonruntime = python. createruntime (); Next, you need to create a scriptengine object, which is the execution engine of Dynamic Language code: Scripten

Many users prefer to store data on the HTMLElement attribute in projects, suchCopy codeThe Code is as follows: Added the custom property "data" and value "some data" to the div on the page ". Use getAttribute in subsequent JS Code.JQuery provides the data/removeData method from 1.2.3 to store/delete data. 1.6.1 code snippetCopy codeThe Code is as follows:JQuery. extend ({Cache :{},// Please use with cautionUuid: 0,...}); That is, a static field/method is added to jQuery, including jQuery. cache/

We often use a hidden control or a JS global variable to temporarily store data, global variables are prone to name pollution, hidden controls cause often read and write Dom wasted performance. jquery provides its own data caching scheme to achieve the same effect as hiding controls and global variables, but jquery is more elegant in its implementation. In order to better use the jquery data caching scheme, we need to Master $.data (), $.cache, $.expando