javascript Complete Real time - Essential Course 2025

Why Should you learn JavaScript . JavaScript has become an essential web technology along with HTML and CSS, as most browsers implement JavaScript. Furthermore, JavaScript usage has now extended to mobile app development, desktop app development, and game development.

All in all, it has exploded in popularity and is now a very useful skill to learn. 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.

Client-side validationDynamic drop-down menusDisplaying date and timeDisplaying pop-up windows and dialog boxesDisplaying clocks etcHandling DOM & BOM. 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 is not a programming language in strict sense. Instead, it is a scripting language because it uses the browser to do the dirty work.