HTML DOM Dialog open Property

Definition and Usage

The open property sets or returns whether a dialog window is open.

This property reflects the HTML <dialog> open attribute.

If the attribute is specified, it indicates that the dialog is active and available for interaction.

Note: The <dialog> element is new in HTML5.

Browser Support

Note: Currently, only Chrome Canary and Safari 6 support the open property.

Note: Even though Chrome Canary supports the <dialog> element, you must open chrome://flags in the Chrome address bar and enable the "Enable experimental Web Platform features" flag. After enabling it, you need to restart the Chrome browser.

Syntax

Get the open property:

dialogObject.open

Set the open property:

dialogObject.open=true|false

Property Values

Value	Description
true|false	Specifies whether the dialog window is open. * true - The dialog window is open. * false - Default. The dialog window is closed.

Technical Details

Return Value:	A Boolean. Returns TRUE if the dialog window is open, otherwise FALSE.

More Examples

Example

Check if the dialog window is open:

var x = document.getElementById("myDialog").open;

The output of x will be:

true

Related Articles

HTML Reference: HTML <dialog> open Attribute