The BarProp interface of the Document Object Model represents the web browser user interface elements that are exposed to scripts in web pages. Each of the following interface elements are represented by a BarProp object.
BarProp
MDN Reference
Readonly
The visible read-only property of the BarProp interface returns true if the user interface element it represents is visible.
visible
The
BarPropinterface of the Document Object Model represents the web browser user interface elements that are exposed to scripts in web pages. Each of the following interface elements are represented by a BarProp object.MDN Reference