emptyP

Help Contents Data Structure Primitives Predicates emptyP
ArrayP equalP

emptyP thing
empty? thing

outputs TRUE if the input is the empty word or the empty list, FALSE otherwise.

Examples: 

empty? "		;true  ;-)
empty? []		;true  ;-)
empty? "Hallo		;false  ;-)
empty? [Hallo]		;false  ;-)
empty? {}		;false  ;-)

Examples:

References:

ArrayP equalP