That’s a good question. Each menu entry has a .Menu
method, so it knows to which menu object it belongs. These two are, as far as I can tell, equivalent:
{{ $currentPage := . }}
{{ range site.Menus.main }}
{{ $currentPage.IsMenuCurrent .Menu . }} --> returns true/false
{{ end }}
{{ $currentPage := . }}
{{ range site.Menus.main }}
{{ $currentPage.Eq .Page }} --> returns true/false
{{ end }}