JavaScript

JavaScript is a high-level programming language primarily used to create interactivity and dynamic behavior in web applications. It runs mainly in web browsers but is also widely used on the server side and in other environments. JavaScript is a core technology of modern web development.

JavaScript is used to handle user interactions, manipulate web page content, communicate with backend services, and build complete applications. It ranges from simple form validation to complex frontend and backend solutions, often together with HTML and CSS.

• Dynamic language: Variables and types are determined at runtime.

• Event-driven: Responds to user and system events.

• Platform-independent: Runs in all modern browsers.

• Ecosystem: Large selection of frameworks and libraries.

Despite similar names, JavaScript and Java are different languages with different purposes. Java is a compiled, strongly typed language commonly used for backend and enterprise systems. JavaScript is interpreted or just-in-time compiled and mainly used for web development. The name similarity is historical rather than technical.

JavaScript was created in the 1990s to add interactivity to web pages and has since evolved into a general-purpose language.

JavaScript is widely used together with Microsoft technologies, including web platforms and cloud-based solutions.

JavaScript is a versatile and essential programming language in modern IT.