NAME

Array::Intersection - Exports an array intersection function

SYNOPSIS

use Array::Intersection;
my @intersection = intersection([1,2,3,4], [3,4,5,6]); #expect (3,4)

DESCRIPTION

This package exports the intersection() function which uses the magic of a hash slice to return an intersection of the data. i

LIMITATIONS

Hash keys are strings so numeric data like 1 and 1.0 will be uniqued away in the string folding process. However, the function folds undef into a unique string so that it supports both empty string "" and undef.

FUNCTIONS

intersection

This intersection function uses a hash slice method to determine the intersection between the first array reference and the second array reference.

my @intersection = intersection([1,2,3,4], [3,4,5,6]); #expect (3,4)
my @intersection = intersection(\@array_1, \@array_2);

SEE ALSO

https://perldoc.perl.org/perlfaq4#How-do-I-compute-the-difference-of-two-arrays?-How-do-I-compute-the-intersection-of-two-arrays? List::MoreUtils

AUTHOR

Michael R. Davis

COPYRIGHT AND LICENSE

Copyright (C) 2024 by Michael R. Davis

MIT