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HTML DOM Event Object

HTML DOM Event Object
HTML DOM Events HTML DOM events allow JavaScript to register different event handlers on elements in an HTML document. Events are normally used in combination with functions, and the function will not be executed before the event occurs (such as when a user clicks a button). Tip: The event model was standardized by the W3C in DOM Level 2. DOM: Indicates in which DOM Level the property was introduced. Mouse Events Keyboard Events Frame/Object Events Form Events Drag Events Clipboard Events Print Events Media Events Animation Events Transition Events Server-Sent Events Misc Events Touch Events Event Object Constants Properties Methods MouseEvent Object KeyboardEvent Object HashChangeEvent Object PageTransitionEvent Object FocusEvent Object AnimationEvent Object TransitionEvent Object WheelEvent Object

http://www.w3schools.com/jsref/dom_obj_event.asp

JavaScript JavaScript is classified as a prototype-based scripting language with dynamic typing and first-class functions. This mix of features makes it a multi-paradigm language, supporting object-oriented,[6] imperative, and functional[1][7] programming styles. JavaScript has been standardized in the ECMAScript language specification. Seek Bars and Sliders Interactive sliders make it possible to select a value from a continuous or discrete range of values by moving the slider thumb. The smallest value is to the left, the largest to the right. The interactive nature of the slider makes it a great choice for settings that reflect intensity levels, such as volume, brightness, or color saturation. Example

JavaScript and the Document Object Model Editor's Note: When the information in this article was written it was up-to-date, but in the last few years this technology has changed. If you are interested in more current information see Traverse the Document Object Model with JavaScript. Note:This article uses a DOM-compatible browser such as Netscape 6.x, Internet Explorer 6, or Mozilla 1.0. Familiarity with the Document Object Model in Java technology or other languages, is helpful, but not required. You should, however, be familiar with JavaScript in general.

Asynchronous I/O Input and output (I/O) operations on a computer can be extremely slow compared to the processing of data. An I/O device can incorporate mechanical devices that must physically move, such as a hard drive seeking a track to read or write; this is often orders of magnitude slower than the switching of electric current. For example, during a disk operation that takes ten milliseconds to perform, a processor that is clocked at one gigahertz could have performed ten million instruction-processing cycles. A simple approach to I/O would be to start the access and then wait for it to complete. But such an approach (called synchronous I/O or blocking I/O) would block the progress of a program while the communication is in progress, leaving system resources idle. When a program makes many I/O operations, this means that the processor can spend almost all of its time idle waiting for I/O operations to complete.

Eloquent JavaScript People think that computer science is the art of geniuses but the actual reality is the opposite, just many people doing things that build on each other, like a wall of mini stones. You’ve seen function values, such as alert, and how to call them. Functions are the bread and butter of JavaScript programming. The concept of wrapping a piece of program in a value has many uses.

XML Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format which is both human-readable and machine-readable. It is defined by the W3C's XML 1.0 Specification[2] and by several other related specifications,[3] all of which are free open standards.[4] The design goals of XML emphasize simplicity, generality and usability across the Internet.[5] It is a textual data format with strong support via Unicode for different human languages. Although the design of XML focuses on documents, it is widely used for the representation of arbitrary data structures[6] such as those used in web services. Several schema systems exist to aid in the definition of XML-based languages, while many application programming interfaces (APIs) have been developed to aid the processing of XML data. Applications of XML[edit]

What You Need To Know About JavaScript Scope Understanding scope in programming is key to appreciating how your variables interact with the rest of your code. In some languages, this can be quite straightforward, but JavaScript’s anonymous functions and event handling features, along with a couple of little quirks, mean that handling scope in your applications can become frustrating. This article discusses how JavaScript handles scope and how various JavaScript libraries provide methods for dealing with it and how they smooth out a few bumps. We’ll also look at how you can get back to basics and do some interesting scope wrangling without a library, a useful approach if you’re writing code that needs to stand alone. You Are Here

Ajax (programming) Ajax is not a single technology, but a group of technologies. HTML and CSS can be used in combination to mark up and style information. The DOM is accessed with JavaScript to dynamically display, and allow the user to interact with, the information presented. JavaScript and the XMLHttpRequest object provide a method for exchanging data asynchronously between browser and server to avoid full page reloads. JavaScript Quick Guide What is JavaScript ? Javascript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-side script to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.

HTTP cookie A HTTP cookie (also called web cookie, Internet cookie, browser cookie or simply cookie, the latter which is not to be confused with the literal definition), is a small piece of data sent from a website and stored in a user's web browser while the user is browsing that website. Every time the user loads the website, the browser sends the cookie back to the server to notify the website of the user's previous activity.[1] Cookies were designed to be a reliable mechanism for websites to remember stateful information (such as items in a shopping cart) or to record the user's browsing activity (including clicking particular buttons, logging in, or recording which pages were visited by the user as far back as months or years ago). §History[edit] The term "cookie" was derived from the term "magic cookie", which is a packet of data a program receives and sends back unchanged. Together with John Giannandrea, Montulli wrote the initial Netscape cookie specification the same year. §Structure[edit]

Features - "Advanced Character Physics" printer friendly This article explains the basic elements of an approach to physically-based modeling which is well suited for interactive use. It is simple, fast, and quite stable, and in its basic version the method does not require knowledge of advanced mathematical subjects (although it is based on a solid mathematical foundation). It allows for simulation of both cloth; soft and rigid bodies; and even articulated or constrained bodies using both forward and inverse kinematics. The algorithms were developed for IO Interactive’s game Hitman: Codename 47. There, among other things, the physics system was responsible for the movement of cloth, plants, rigid bodies, and for making dead human bodies fall in unique ways depending on where they were hit, fully interacting with the environment (resulting in the press oxymoron “lifelike death animations”).The article also deals with subtleties like penetration test optimization and friction handling.

JavaScript Language Reference JavaScript is a scripting language that can be embedded in web pages and other applications. This documentation describes the Microsoft implementation of JavaScript, which is compliant with the ECMAScript Language Specification 5th Edition. It also provides additional features that are not included in the ECMA Standards. PHP PHP is a server-side scripting language designed primarily for web development but also used as a general-purpose programming language. Originally created by Rasmus Lerdorf in 1994,[4] the PHP reference implementation is now produced by The PHP Development Team.[5] PHP originally stood for Personal Home Page,[4] but it now stands for the recursive acronym PHP: Hypertext Preprocessor.[6] The standard PHP interpreter, powered by the Zend Engine, is free software released under the PHP License. PHP has been widely ported and can be deployed on most web servers on almost every operating system and platform, free of charge.[8] The PHP language evolved without a written formal specification or standard until 2014, leaving the canonical PHP interpreter as a de facto standard.

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