PAGE.HasMenuCurrent MENU MENUENTRY
.HasMenuCurrent is a method in
Page object returning a boolean value. It
true if the PAGE is the same object as the
.Page in one of the
children menu entries under MENUENTRY in a given MENU.
.Page is a section then, from Hugo
0.86.0, this method also returns true for any descendant of that section..
You can find its example use in menu templates.