inputtextarea

Inputtextarea is a user interface concept describing a control that accepts text input and can operate as either a single-line input or a multi-line text area. In practice, it is often implemented as a component that can render an input element (for short, single-line entries) or a textarea element (for longer, multi-line entries) and may offer automatic switching or dynamic resizing based on content.

Common usage of inputtextarea appears in web forms where users may provide varying lengths of text, such as names, comments, or descriptions. Some implementations provide auto-resizing behavior, expanding the visible area as the user types to accommodate more content without introducing a separate scroll area. This makes the component flexible for diverse input requirements while maintaining a compact interface when short text is entered.

Implementation notes emphasize that, in HTML, input and textarea are distinct elements. A true inputtextarea component typically abstracts this distinction and exposes a unified API for properties such as value, placeholder, maxlength, required, and disabled, along with layout controls like rows or auto-resize settings. Accessibility considerations include associating a label with the control, ensuring clear focus indicators, and providing appropriate aria attributes for multi-line input.

In framework ecosystems, inputtextarea may be provided as a single reusable component or as a pair of elements with a shared wrapper. Design choices vary on whether to default to single-line input with a toggle to switch to multi-line, or to render a resizable textarea directly. See also input field and textarea.