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.
Javascript
Topic: JS Basic
What are the Advantages of JavaScript ?
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