JavaScript

object-oriented and object-basedAlmost every developer has a development experience with object-oriented languages such as C + +, C #, and Java. In the traditional object-oriented language, there are two very important concepts-classes and instances.

Beginners always thought it was simple when they closed the bag. But with an in-depth study of a problem, we really understand the closure, but also found that even > is not accurate in the place.I'm not going to introduce the concept of closures

Every time you listen to the face of the big God back, will always mention xxx garbage collection, XXX memory recovery, read the "JavaScript Advanced Program Design", the garbage collection mechanism of JavaScript has a general understanding,

IntroducedThe policy pattern defines the algorithm family, which is encapsulated separately so that they can be replaced by each other, and this pattern allows the algorithm to change without affecting the client using the algorithm.BodyBefore we

The popular JavaScript library has Jquery,mootools,prototype,dojo and Yui and so on, these JavaScript libraries feature rich, plus their numerous plugins, almost can achieve any function you needHowever, to implement some specific functions, you can

Original address: http://www.jb51.net/article/18220.htm We all know that the use of events is when an event (condition) is triggered and then executes a function, especially JavaScript, in the context of the popular Ajax catalysis , it's more

----------------------------------------------1. Request dataThere are 5 commonly used techniques for requesting data from the server: Xmlhttprequest,dynamic script tag insertion (dynamic script tag insertion), Iframes,comet,multiparty XHR

HTML5 added to help manage focus product features, there are ways to obtain focus documents; Page load, user input (usually by tab bond). and invoke the Code focus () feature.HTML5 new properties and methods to assist in the management of the

A year ago, I wrote an article, "What is Event Loop?" , and talked about my understanding of the event loop. Last month, I happened to see Philip Roberts's speech, "Help, I ' M stuck in an Event-loop". It is only embarrassing to find that their

1 varA1 = Math.pow (2,3);//2 of 3 power2 varA2 = Math.Round (. 6);//Rounding3 varA3 = Math.Round (0.6);//rounding, self-testing complete decimal rounding4 vara4 = Math.ceil (. 6);//To seek the whole up5 varA5 = math.floor (. 6);//

The getMilliseconds () method in JavaScript is described in detail, and the javascript closure is described in detail. The javascript Date. getMilliseconds () method returns the number of milliseconds of the specified Date according to the local

JQuery replaces the line feed method in textarea, jquerytextarea This example describes how jQuery replaces the line feed in textarea. Share it with you for your reference. The specific analysis is as follows: When my colleague learned jQuery

JavaScript lexical scopes (JavaScript you Don't know)JavaScript is not a traditional block-level scope, but a function scope!I. Scope 1. the JavaScript engine will compile the code before execution. In this process, declarations such as var a = 2

One of the several javaScript design patterns-the Single Mode JavaScript is a weak type, dynamic, prototype-based language. This language feature makes it very easy, It is even common to implement some of these modes. The idea of the standalone mode

Example of exec function usage in JavaScript This example describes how to use the exec function in JavaScript. Share it with you for your reference. The details are as follows: The exec function in javaScript runs the search in the string in

Introduction to the use of italics () in JavaScript This article mainly introduces the use of italics () in JavaScript, which is the basic knowledge in JS beginners. For more information, see This method will cause a string to be italic, as if it is

JavaScript converts a Date to a string using Date-Mask This example describes how JavaScript converts a Date to a string using Date-Mask. Share it with you for your reference. The specific implementation method is as follows: ? 1 2 3 4 5

How to draw a circular pattern using canvas using js + html5 This article describes how to use JavaScript + html5 to draw a circular canvas. Share it with you for your reference. The specific implementation method is as follows: ? 1 2

Using JavaScript + html5 to draw simple rectangles on a canvas This article describes how to draw a simple rectangle using canvas in js + html5. Share it with you for your reference. The specific implementation method is as follows: ?

Css3 jQuery implements 3d search box + empty judgment, css3jquery css3 3d search box http://www.999jiujiu.com/ If a JS error is prompted in the lower right corner, refresh the page.