JavaScript: The Definitive Guide, 5th Edition

Name

Textarea: a multiline text input area — DOM Level 2 HTML: Node → Element → HTMLElement → Textarea

Properties

String defaultValue

The initial content of the text area. When the form is reset, the text area is restored to this value. Setting this property changes the displayed text in the text area.

readonly Form form

The Form object that represents the <form> element containing this Textarea, or null if this element is not inside a form.

readonly String type

The type of this element, for compatibility with Input objects. This property always has the value “textarea”.

String value

The text currently displayed in the text area. The initial value of this property is the same as the defaultValue property. When the user types into this element, the value property is updated to match the user’s input. If you set the value property explicitly, the string you specify is displayed in the Textarea object. This value property contains the text that is sent to the server when the form is submitted.

In addition to these properties, Textarea objects also mirror HTML attributes with the following properties:

Property	Attribute	Description
String accessKey	accesskey	Keyboard shortcut character
long cols	cols	The width in character columns
boolean disabled	disabled	Whether the Textarea is disabled
String name	name	Textarea name for form submission and element access.
boolean readOnly	readonly	Whether the Textarea is noneditable
long rows	rows	Height ...