Why Learn JavaScript ?

JavaScript

JavaScript is a text-based programming language used both on the client-side and server-side that allows you to create dynamically updating content, control multimedia, animate images and pretty much everything else. Where HTML defines the structure and CSS declares various styles to web pages, JavaScript gives web pages interactive elements that engage a user.

JavaScript Features like:

animated graphics
photo slideshows
interactive forms

Almost every browser use JavaScript as a scripting language for doing dynamic things on the web.

What Is JavaScript Used For?

These are the main things JavaScript is used for.

Adding interactivity to websites—if you want a fabulous modern website, you’ll need to do some JavaScripting.
Developing mobile applications—It is used to create the apps you have on your mobile phone and tablet as well.
Creating web browser-based games—JavaScript may help to play a game directly from your web browser.
Back end web development—It is used on the front end of things, but it’s a versatile enough scripting language to be used on back end infrastructure, too.
3D Drawings: In addition, it is used with HTML Canvas to make three-dimensional graphics.