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Dialog open Property

< Dialog Object

Example

Open a dialog window:

document.getElementById("myDialog").open = true;
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Definition and Usage

The open property sets or returns whether a dialog should be open or not.

This property reflects the <dialog> open attribute.

When present, it specifies that the dialog element is active and that the user can interact with it.

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


Browser Support

Property
open Yes Not supported Not supported Yes Yes

Syntax

Return the open property:

dialogObject.open

Set the open property:

dialogObject.open=true|false

Property Values

Value Description
true|false  Specifies whether a dialog window should be open or not
  • true - The dialog window is open
  • false - Default. The dialog window is not open

Technical Details

Return Value: A Boolean, returns true if the dialog window is open, otherwise it returns false

More Examples

Example

Find out if a dialog window is open or not:

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

The result of x will be:

true
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Related Pages

HTML reference: HTML <dialog> open attribute


< Dialog Object