```
the number of [card] {buttons|parts}
the number of bkgnd {buttons|parts}
the number of card fields
the number of [bkgnd] fields

the number of marked cards the number of cards [in <i>bkgnd</i>] ¬
   [of this stack]
the number of bkgnds [of this stack]

the number of windows
the number of menus
the number of menuItems of <i>menu</i>
the number of <i>chunks</i> in <i>expression</i>
```

Values returned: A non-negative integer equal to one of the following:

* total number of buttons <u>or</u> fields      on the current card or background

* total number of parts (buttons <u>and</u>      fields combined) on the current card      or background

* total number of marked cards,      cards in a specific background,      cards in an entire stack, or      backgrounds in a stack

*  number of all the windows     (including built-in palettes and     external windows) in HyperCard

*  number of menus in the     menu bar or the number of menu     items in a specified menu

*  total number of characters,     words, items, or lines in the value    of any HyperTalk expression (treated    as text)