Checkbox Input
A checkbox input is a user interface element in web and software development that allows users to select one or multiple options from a set, typically represented as a small square box that can be checked or unchecked. It is commonly used in forms, settings panels, and interactive lists to enable binary choices or multi-selections. In HTML, it is implemented using the <input type="checkbox"> tag, which can be styled and controlled with CSS and JavaScript.
Developers should learn and use checkbox inputs when building forms or interfaces that require users to make selections, such as agreeing to terms, choosing preferences, or filtering data. They are essential for creating accessible and user-friendly web applications, as they provide a clear visual indicator of selected options and support keyboard navigation and screen readers. Use cases include registration forms, e-commerce filters, and configuration settings where multiple independent choices are allowed.