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Showing posts with label JavaScript programming. Show all posts

Javascript Programming

One more widely used programming language in the modern web application design and development is Javascript. The main purpose behind the JavaScript programming is making web applications more interactive and responsive, subsequently providing the users with a much better user experience.

javascript-web-programming

What is JavaScript 

Javascript is a client-side language with processing engine embedded in web browsers. JavaScript programming was originally invented as part of web browsers. As a client-side language, JS allows users to interact with web pages and load the content without refreshing the web page.

Originally, JavaScript was developed in Netscape under the name LiveScript. The choice of “JavaScript” name caused a misconception that the language is a version of the programming language known as JAVA. However, although both have some common syntax, JavaScript and Java are different languages. JavaScript was developed at Netscape, while Java was originally developed at Sun Microsystems. The syntax of JavaScript was influenced by one more widely used programming language C. JavaScript is a multi-paradigm, prototype-based, object-oriented, imperative, and functional scripting language, not a real programming language.

Google Chrome extensions, Opera's extensions, Google Desktop Gadgets, Apple's Safari 5 extensions are implemented using JavaScript. Outside of web browsers and web pages, JavaScript are be used in PDF files as well as for desktop application creation.

JavaScript Features

Javascript brings more dynamic functions and features to HTML. The most common use of JavaScript is writing functions that are embedded in HTML and interact with the Document Object Model. Let us look at just some JavaScript programming features:

 • Loading the content via AJAX without reloading the web page
 • Manipulating, moving, resizing, etc web page elements, animation, visual effects
 • Interactive content using and developing, game development, audio/video
 • Performing web form validations, as well as calculations
 • Other

The latest version is JavaScript 1.8.5. jQuery and Prototype are popular JavaScript libraries. The development of Ajax enhanced the interest to JavaScript language using and implementation.