Accordion Menu
An accordion menu is a user interface component that allows content to be collapsed and expanded vertically, typically used for navigation or organizing information in a space-efficient way. It consists of a series of headers that, when clicked or tapped, reveal or hide associated content panels, with only one panel open at a time by default to reduce visual clutter.
Developers should learn to implement accordion menus when building websites or applications that require hierarchical navigation, FAQ sections, or content-heavy interfaces where space is limited, such as mobile apps or sidebars. They improve user experience by organizing information in a clean, accessible manner and are commonly used in web development with HTML, CSS, and JavaScript or frameworks like React and jQuery.