The HTML <dialog> open Attribute is used to specify whether the dialog box should be open or not. It is new in HTML5. It is a Boolean Attribute.
If open, it means the user can interact with it.
Attribute Values: It accepts two values i.e. true|false which specifies whether a dialog window should be open or not. By default, it is false.
- true: It states that the dialog window is open.
- false: It states that the dialog window is not open.
Supported Browsers: The browsers supported by HTML <dialog> open Attribute are listed below:
- Google Chrome
- Apple Safari