kotlin-browser/web.command/showPopover

showPopover

val Command.Companion.showPopover: Command(source)

The button will show a hidden popover. If you try to show an already showing popover, no action will be taken. See "Popover API" for more details. This is equivalent to setting a value of show for the popovertargetaction attribute, and also provides a declarative equivalent to calling the HTMLElement.showPopover() method on the popover element.