A JavaScript course is a structured educational program that teaches individuals how to use JavaScript, a versatile programming language primarily used for web development. These courses typically cover the fundamentals of JavaScript, including variables, data types, functions, and control structures, and then progress to more advanced topics like working with the Document Object Model (DOM), handling asynchronous programming, and building interactive web applications. JavaScript courses may be available in various formats, including online tutorials, video lectures, interactive coding exercises, and hands-on projects, catering to learners of different skill levels, from beginners to experienced developers. This training equips participants with the skills necessary to create dynamic and interactive websites and web applications.