JavaScript
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.
Advantages of 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 dragand-drop components and sliders to give a Rich Interface to your site visitors.