HTML DOM textarea 对象

文本区域对象

Textarea 对象表示 HTML <textarea> 元素。

您可以使用 getElementById() 访问 <textarea> 元素：

var x = document.getElementById("myTextarea");

提示：您还可以通过搜索来访问 <textarea> 元素元素表格的集合。

您可以使用 document.createElement() 方法创建 <textarea> 元素：

var x = document.createElement("TEXTAREA");

Property	Description
autofocus	Sets or returns whether a text area should automatically get focus when the page loads
cols	Sets or returns the value of the cols attribute of a text area
defaultValue	Sets or returns the default value of a text area
disabled	Sets or returns whether the text area is disabled, or not
form	Returns a reference to the form that contains the text area
maxLength	Sets or returns the value of the maxlength attribute of a text area
name	Sets or returns the value of the name attribute of a text area
placeholder	Sets or returns the value of the placeholder attribute of a text area
readOnly	Sets or returns whether the contents of a text area is read-only
required	Sets or returns whether the text area must be filled out before submitting a form
rows	Sets or returns the value of the rows attribute of a text area
type	Returns the type of the form element the text area is
value	Sets or returns the contents of a text area
wrap	Sets or returns the value of the wrap attribute of a text area

Method	Description
select()	Selects the entire content of a text area

Textarea对象还支持标准特性和事件。