JavaScript

Extjs initializes the checkboxgroup value Code. For more information, see. The Code is as follows: Ext. override (Ext. form. CheckboxGroup ,{SetValueForItem: function (val) {// multiple option values are separated by commasVal = "," + val + ","

JS string Function Extension code. You can refer to the prototype usage method to expand your own string processing functions. The Code is as follows: /*************************************** ************** CreateBy: joe zhou* CreateDate: 2011-9-4

I have been rebuilding the workstation track playback function some time ago. At first I thought it was very simple, but it caused a series of strange problems, which made me very painful, so I had to write a summary to deepen my memory. Background:

Javascript class, namespace, Code Organization Code. For details about js learning, refer. The Code is as follows: $ (Function (){PageJs. urls = ['/', 'Index ',];PageJs. run ();});// The functions include html elements. Ajax function also can be

Those who are dealing with html + ashx will surely find that although this mode is elegant, it will encounter some difficult issues during development. I am no exception. The following are some of my experiences in actual development. I hope to

Travel, flying, IE, and Air Web Browsers Do not prompt to close the method. For more information, see. The Code is as follows:

As mentioned above, how to use jQuery. extend and jQuery. fn. extend in the jQuery library to expand its own. Article 3 adds a common selector to zChain. js, but zChain. js still cannot do anything so far. JQuery operations are usually divided into

This code was called the world's shortest IE judgment code before IE9. The code is short but contains a lot of basic javascript knowledge. Var ie =! -[1,]; This code was called the world's shortest IE judgment code before IE9.The code is short but

In the company's project requirements, there is a positioning box similar to the Sina Weibo message prompts. For more information, see. : When the browser is rolling, when the browser needs to float the layer to remove the browser interface view

Summary of javascript Exception Handling... Catch... You can use the try... catch... finally statement to handle exceptions in finallywindow. onerror JavaScript, or manually throw an exception. 1. Use the try... catch... finally statement to handle

Javascript is a weak type language, so forced type conversion is more important. Let's take a look at several of its forced conversion functions. 1. Boolean (value): Convert the value to the Boolean type; 2. Nnumber (value): converts a value to a

The values of childNodes. length and children. length are often different. Because ChildNodes Not only Html Node , AllAttribute,TextAre included in ChildNodes Inside , You can use NodeType To determine the type of node, only when NodeType = 1 Make

Detect JS Code of various browsers and Systems The Code is as follows: Var sUserAgent = navigator. userAgent;Var fAppVersion = parseFloat (navigator. appVersion );Function compareVersions (sVersion1, sVersion2 ){Var aVersion1 = sVersion1.split ("."

Sometimes we need to use js to set the style attributes of the document. The following describes some methods and principles for analysis. You can see that it is okay. First, let's talk about the style sheet attributes. 1. inline style is set in the

How to Create a hyperlink in javasript and apply it to the tree control event processing in Ext 1. How to Create a hyperlink in javasript

The basic concepts of JavaScript forum post is a summary of some advanced js skills. 1. About this object The Code is as follows: View plaincopy to clipboardprint?Var obj1 = new Object ();Var obj2 = new Object ();// Add the property p to both

Recently, I have passed some tests to comprehensively parse the JavaScript code execution sequence of web pages in various browsers and record them here. We know that javaScript is an interpreted language, and its execution is top-down, but the

In the previous blog "Judging the current webpage display mode in IE8", I mentioned that IE has different display modes and how to use Javascript to dynamically determine. Web developers can import different content according to different display

Today, I am launching a piece of Obfuscated javascript code, because the source code is lost... I was planning to get the code at the js engine level and found that it was not necessary at all. Manual decryption is much simpler than imagined. It

1. Keep it non-invasive and mark the JavaScript code You Don't Want To Know; 2. prohibit modification and extension of Object. prototype !; 3. the fewer extensions of JavaScript built-in objects, the better. 4. follow the standard; 5. or follow the