What do you mean by text area?
The <textarea> element is often used in a form, to collect user inputs like comments or reviews. A text area can hold an unlimited number of characters, and the text renders in a fixed-width font (usually Courier). The size of a text area is specified by the cols and rows attributes (or with CSS).
What is text area UI?
Textarea component is a multi-line Input which allows you to write large texts.