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Learning JavaScript tutorial – an introduction with JavaScript

JavaScript is most popular, commonly used, object-oriented, client-side scripting language. JavaScript widely used in tasks ranging from the form data validation to the development of enhanced user interfaces and dynamic websites. The primary use of Client-side JavaScript is to write functions that are embedded in or included from HTML pages and interact with the Document Object Model (DOM) of the page. Because JavaScript code can run locally in a user’s browser (instead of get parse on a remote server like PHP or ASP.NET), it can respond to user actions quickly, making an application feel more responsive and user friendly.

What can a JavaScript do for a Web Developer?

As a web developer you can use JavaScript to perform various tasks, some of them are as follows…

  • JavaScript can be used to forms data validation.
  • JavaScript can be used to create cookies and manage cookies.
  • JavaScript can used to handle and react to various events.
  • JavaScript can be used to implement dynamic text effects, Menus, tickers into the HTML page.
  • JavaScript Ajax techniques has led to an increase in interactive or dynamic interfaces on web pages.
  • JavaScript can be used to implement AJAX text effects, Menus, sideshows, transitions, event handling into the HTML page.
  • The DOM accessed with JavaScript allows to dynamically display and interact with the information presented, and allow exchanging data asynchronously between browser and server, avoiding page reloads.
  • JavaScript also supports regular expressions, a concise and powerful syntax for text manipulation.

JavaScript History

JavaScript was originally developed by Brendan Eich of Netscape under the name Mocha, which was later renamed to LiveScript, and finally to JavaScript. The change of name from Live Script to JavaScript roughly coincided with Netscape adding support for Java technology in its Netscape Navigator web browser. JavaScript was first introduced and deployed in the Netscape browser version 2.0B3 in December 1995 and Microsoft browsers since 1996. JavaScript’s official name is ECMAScript. ECMAScript is developed and maintained by the ECMA organization. ECMA-262 is the official JavaScript standard.

What You Need to Know to learn JavaScript

Before you start learning about JavaScript, you should have (or need to obtain) a basic knowledge of Web and Websites. You need to-be well familiar with.

  • HTML
  • Cascading Style Sheets (CSS)
  • Text editors
  • Web browsers
  • The different versions of JavaScript

Also Read

http://en.wikipedia.org/wiki/JavaScript

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