JavaScript

JavaScript helps to build dynamic Web pages by ensuring maximum user interactivity. JavaScript is a scripting language that supports object-oriented programming style. This means that it provides objects for specifying functionalists. An object has a unique identity, state, and behavior.

JavaScript being a light-weight programming language is embedded directly into HTML pages. JavaScript is also free for use by all. It is the most popular scripting language and is supported by the major browsers.

Functionality of JavaScript:

JavaScript helps to include additional expression and functionality to your Web pages. Some
of the tasks that can be performed using JavaScript and HTML 5 are as follows:

• With HTML 5 and JavaScript, you can create a 2D draw able surface in your page without using any plug-ins.
• Use Web Workers to turbo charge the JavaScript code to perform advanced computation or make an application more responsive.
• Access any Web service and bring that data back to your application in real time.
• No need for special plug-ins to play video.
• Create your own video playback controls using HTML and JavaScript.
• There is no need to use browser cookies as the browser local storage can be used.
• Use JavaScript to perform full video processing in the browser. You can also create special effects and even directly manipulate video pixels.

  
  

Besides the points mentioned JavaScript can also perform the following functionalists:

• JavaScript helps Web designer to insert code snippets into the HTML pages without the need to have in-depth programming knowledge.
• JavaScript can be used to execute events on certain user acting such as on click of a HTML element, page load, and so on.
• HTML elements can be manipulated by using JavaScript.
• The browser information of a Web site visitor can be collected by using JavaScript.