Array.elem(3kaya)
NAME
Array::elem - Check whether a value is in a list.
SYNOPSIS
Bool elem( a val, [a] list, Bool(a, a) eq=equal )
ARGUMENTS
val The value to search for ("needle")
list The list to search ("haystack")
eq Optionally, the function used to check for presence (the default is
Builtins.equal (3kaya) , obviously, but Builtins.identical (3kaya)
might be used)
DESCRIPTION
Check whether the "needle" occurs at least once in the "haystack". This
function can be thought of as a specialised version of Array.any
(3kaya)
AUTHORS
Kaya standard library by Edwin Brady, Chris Morris and others
(kaya@kayalang.org). For further information see http://kayalang.org/
LICENSE
The Kaya standard library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License (version 2.1 or any later version) as published by the Free
Software Foundation.
RELATED
- Array.any (3kaya)
Builtins.equal (3kaya)
Builtins.identical (3kaya)