SketchyLISP Reference |
Copyright (C) 2007 Nils M Holm |
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Conformance: R5RS Scheme
Purpose: Check whether a datum is an empty list.
Arguments:
X - datum
Model:
(define (null? x) (eq? x '()))
Implementation:
; This function is a primitive function.
Example:
(null? '()) => #t
See also:
list?.
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