Textarea maxLengthProperty

Textarea 对象参考手册Textarea Object


Example

Get the maximum number of characters that can be entered in the textarea:

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

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Definition and Usage

The maxLength property is used to set or return the value of the maxlength attribute of the textarea element.

The maxLength property specifies the maximum number of characters allowed to be entered in the textarea element.



Browser Support

Property
maxLength Yes 10.0 Yes Yes Yes

Syntax

Return the maxLength property:

textareaObject.maxLength

Set the maxLength property:

textareaObject.maxLength = number


Property Values

Value Description
number

Specifies the maximum number of characters allowed in the textarea element.



Technical Details

Return Value: A number representing the maximum number of characters allowed in the textarea element.

More Examples

Example

Set the maximum number of characters that can be entered in the textarea:

document.getElementById("myTextarea").maxLength = "4";

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Textarea 对象参考手册Textarea Object

Other Extensions