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Re: How can you check if a word in a array occur in another array?

by frozenwithjoy (Curate)
on Nov 29, 2012 at 08:29 UTC ( #1006195=note: print w/ replies, xml ) Need Help??


in reply to How can you check if a word in a array occur in another array?

To avoid complicated nested loops, I'd make use of a hash to index your first file and then look up the second list of words in the hash. Here is something a bit more simple that you can mess with to fit your needs:

#!/usr/bin/env perl use strict; use warnings; use feature 'say'; my $file_1 = "the cat ran up the tree the cat the dog then barked at the cat the +cat jumped out of the tree"; my $file_2 = "the cat dog"; my %words; $words{$_}++ for split / /, $file_1; say "$_: $words{$_} occurrence(s)" for split / /, $file_2; __END__ the: 7 occurrence(s) cat: 4 occurrence(s) dog: 1 occurrence(s)


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