Watch. Click here JavaScript is a high-level, dynamic programming language commonly used for building interactive and dynamic websites. It was originally developed by Netscape as a way to add interactivity to web pages, and it's now one of the core technologies of the web, alongside HTML and CSS. JavaScript is primarily used for: Client-Side Scripting: Most often, JavaScript is executed in the web browser (client-side) to manipulate the content and structure of web pages. For example, it can be used to create interactive forms, handle events like button clicks, animate elements, or validate user input. Server-Side Scripting: With the advent of technologies like Node.js, JavaScript can also be run on the server, enabling developers to write both client-side and server-side code using the same language. Event-Driven Programming: JavaScript is event-driven, meaning it often runs in response to user actions like clicks, key presses, or page loading events. Versatile a...