JavaScript

JQuery does not seem to be able to directly retrieve elements across the framework. However, combined with DOM and JQuery, you can obtain the document Object of iframe. With this object, it is convenient to use jquery again. Varsubdoc $ (document.

Introduction: as a web user, we know that the speed of page loading or refreshing is crucial to its success. This article will help you better understand the factors that affect the performance of web applications. Learn to identify these problems

JavaScript code involves three functions: escape, encodeURI, and encodeURIComponent. Three decoding functions are involved: unescape, decodeURI, and decodeURIComponent1. encodeURIComponent is required when passing parameters, in this way, the

The function is a magical child shoe in JS. So how to create a function? In simple terms, there are several forms: 1. Definition functiona () {}2. Declarative varafunction (){}; // assign an anonymous function to a variable. 3. constructor var...

01 functionchkFlash () {02 varisIE (navigator. appVersion. indexOf (& quot; MSIE & quot;) & gt; 0); 03 varhasFlashtrue; 0405if (isIE) {06try {07 varobjFlashnewActiveXObject (& quot; Sho 01 function chkFlash (){ 02 var isIE = (navigator. appVersion.

This tree is implemented using the zTree plug-in! The Code is as follows: Jsp code & lt ;%@ pagelanguage & quot; java & quot; pageEncoding & quot; UTF-8 & quot ;%& gt; & lt; % Stringpathrequest. getContextPath (); StringbasePathreques This tree is

Java code varabc; alert (abc); // output undefined directly to indicate that the variable is not initialized alert (abcundefined) // output truevarjeoundefined; alert (jeo) here ); // undefined is also output here, which indicates that if unde is

The following JavaScript code is used to determine whether the Internet Explorer is the shortest in the world written by a Technical Coordinator: js Code & lt; script & gt; if (! + [1,]) alert (& quot; this is IE browser & quot;); elsealert (& quot;

Alibaba \ Build \ amChartsFB4.swc (because I use Flex4), copy amChartsFB4.swc to the lib directory in the Flex phase, and then Xml Code1. Download the plug-in amcharts_flex_components_1.6.1.1.zip from the official website In amcharts_flex_components_

Window. isCtrlKeyfunction (keyCode) {// 8-backspace // 9-Tab ///13-press ENTER // 16 ~ 18-Shift, Ctrl, Alt // 37 ~ 40-upper left and lower right // 35 ~ 36-EndHome // 46-Del //... SyntaxHighlighter. all (); Window. isCtrlKey = function (keyCode ){//

Keydown, keyup, keypress event object in Javascript, keyCode! KeyChar. Many people on the internet provide a comparison table between keyCode and keyChar. Therefore, according to the table of comparison, the following tool functions are generated.

Ajax instance project structure: the content of each file is as follows: Ajax. js: varxhr; functioncreateXHR () {varxhr; try {xhrnewActiveXObject (& quot; Msxml2.XMLHTTP & quot;); returnxhr;} catch (e) {try {xhrnewActiveXObject (& qu Ajax

Finally speaking of JavaScript inheritance, prototype chain inheritance is the most common method: Java code functionVideo () {}; functionMovie () {}; Movie. prototypenewVideo (); Movie. prototype. constructorMovie; // do not lose the constructor...

Several methods to obtain the elements in iframe through query the iframe sub-page. The code for getting the elements in the parent page is as follows: Symbol (39}}}objid}39}, parent.doc ument); // get it done... the code for getting the iframe

We will test the random sorting of 0-9, Mr into data viewsourceprint? 1 vararr [,]; viewsourceprint? 1arr. sort (); 2document. write (& quot; array element after normal sorting: & quot; + arr. join (& quot;, & quot;) + & quo We will test the random

At the beginning, I wanted to use the following two lines of code: viewplaincopytoclipboardprint? History. go (-2); location. reload (); history. go (-2); location. reload (); as it turns out, the page will be refreshed all the time, because the

Java code & lt; scripttype & quot; text/javascript & quot; & gt; functionmousePosition (ev) {if (ev. pageX | ev. pageY) {return {x: ev. pageX, y: ev. pageY };} return {x: ev Java code

Js Code functioncheckTaxpayerCode (s) {varregexp/^ [A-Za-z0-9] {6, 10} $/; if (regexp. test (s) {$ (& quot; # messageId & quot ;). empty (); returntrue;} else {$ (& quot; # messageId & quot ;). Js CodeFunction checkTaxpayerCode (s ){Var regexp =/^ [

Last night I read an article on how Java developers think about JavaScript on IBM. I found that as a Java developer, I must understand and be proficient in JavaScript. after all, JavaScript is already very powerful. Injection of plug-ins such as

JQuery uses the $ symbol as an introduction to jQuery. Some other functions in the JavaScript Library (such as Prototype) also use the $ symbol. JQuery uses noConflict () to solve this problem. VarjqjQuery. noConflict ()... SyntaxHighlighte JQuery