Syntax:
listp object => generalized-boolean
Arguments and Values:
object---an object.
generalized-boolean---a generalized boolean.
Description:
Returns true if object is of type list; otherwise, returns false.
Examples:
(listp nil) => true (listp (cons 1 2)) => true (listp (make-array 6)) => false (listp t) => false
Side Effects: None.
Affected By: None.
Exceptional Situations: None.
See Also:
Notes:
If object is a cons, listp does not check whether object is a proper list; it returns true for any kind of list.
(listp object) == (typep object 'list) == (typep object '(or cons null))
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