Java Script Tutorials: Pros and Cons of Using JavaScript

The merits of using JavaScript are:

·         Less server interaction: You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.

·         Immediate feedback to the visitors: They don't have to wait for a page reload to see if they have forgotten to enter something.

·         Increased interactivity: You can create interfaces that react when the user hovers over them with a mouse or activates them via the keyboard.

·         Richer interfaces: You can use JavaScript to include such items as drag-and-drop components and sliders to give a Rich Interface to your site visitors.

The Demerit of using JavaScript are:

We can not treat JavaScript as a full fledged programming language. It lacks the following important features:

·         Client-side JavaScript does not allow the reading or writing of files. This has been kept for security reason.

·         JavaScript can not be used for Networking applications because there is no such support available.

·         JavaScript doesn't have any multithreading or multiprocess capabilities.

Once again, JavaScript is a lightweight, interpreted programming language that allows you to build interactivity into otherwise static HTML pages.