Simplified Common Lisp reference

Symbol class: Sequences (Lists, Strings) and Arrays

Syntax:

Symbol type: function

somepredicatesequences^{(one or more)} => T or NIL

Argument description:

predicate	predicate function
sequences	sequences

SOME function searches the sequences for values for which predicate returns true. It there is such list of values that occupy same index in each sequence, return value is true, otherwise false.

(some #'alphanumericp "") => NIL
(some #'alphanumericp "...") => NIL
(some #'alphanumericp "ab...") => T
(some #'alphanumericp "abc") => T

(some #'< '(1 2 3 4) '(2 3 4 5)) => T
(some #'< '(1 2 3 4) '(1 3 4 5)) => T
(some #'< '(1 2 3 4) '(1 2 3 4)) => NIL

Function index Full documentation for some (HyperSpec)