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This article mainly introduces how to perl array string intersection, union, difference set package, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Array::Utils, perl to take intersection of two data, union difference set, etc., union,intersect,diff and other operations

Sometimes we have to take intersection and union of two pieces of data, union,intersect,diff and other operations. Although we can write our own scripts, we already have a package. Why not use a package written by others? here is a package to solve this problem: Array::Utils also comes with other features that are easy to use:

Use Array::Utils qw (: all); my @ a = qw (a b c d); my @ b = qw (c d e f); # symmetric differencemy @ diff = array_diff (@ a, @ b); # intersectionmy @ isect = intersect (@ a, @ b); # unique unionmy @ unique = unique (@ a, @ b) # check if arrays contain same membersif (! array_diff (@ a, @ b)) {# do something} # get items from array @ a that are not in array @ minus = array_minus (@ a, @ b)

Detailed help for the package: https://metacpan.org/pod/Array::Utils

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