JavaScript is a high-level programming language that is commonly used to create interactive and dynamic web pages. It was created by Brendan Eich in 1995 and has since become one of the most widely used programming languages on the web. JavaScript can be used both on the front-end (client-side) and back-end (server-side) of web development.

On the client side, JavaScript is primarily used to add interactivity to web pages. It can be used to create animations, manipulate the DOM (Document Object Model), validate form data, and much more. JavaScript is often used in conjunction with HTML and CSS to create dynamic and engaging user experiences on the web.

On the server side, JavaScript can be used with platforms like Node.js to create server-side applications and APIs. This allows developers to use a single programming language (JavaScript) for both the client-side and server-side of web development, which can lead to more efficient development and better code maintenance.

JavaScript is a loosely typed language, meaning that variables do not need to be declared with a specific data type. It is also an interpreted language, which means that code is executed in real time by an interpreter rather than being compiled into machine code beforehand.

Overall, JavaScript is a versatile language that is essential for modern web development

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