What does JavaScript mean?

JavaScript is a programming language used mainly to create interactive and dynamic elements on web pages. It makes it possible to respond to user clicks, open menus, display forms, change content without reloading the page, work with animations or load data from a server. Together with HTML and CSS, it is one of the core technologies of the modern web. JavaScript is also used in developing e-shops, web applications and some server-side solutions. It helps improve functionality and user experience, but it is important to optimize it properly, because overly complex or slow code can negatively affect website loading speed.