options and rebuild them in onChange to suggest completions as the user types, here titles of classic novels.showSearch.onSearch to build suggestions from each keystroke, here the typed name completed with common email domains.label to show an icon or extra text in the row, while value stays the text that fills the field.{ label, options } to list the matches under group headings, like guides and components.showSearch.filterOption to filter a fixed list, here by name and ignoring case.Input.TextArea as children to suggest completions in a multi-line field instead of the default input.status to error or warning to color the border when the typed text needs attention.allowClear to show a clear button once the field has text.Form.Item with rules to validate the typed text, here a website field that suggests full URLs.