my @dna_chunks = ...;
sub your_test {
   my $string = shift;
   # do your test here, and return 1 if it passes
}

my @used = grep your_test($_), @dna_chunks;
my $long_string = join '', @used;
print "Used ", scalar(@used), " chunks, ",@dna_chunks - @used, " disca
+red";

[download]

See grep for details.

Perl 6 - the future is here, just unevenly distributed

In reply to Re: Analyse an array and join only some elements of it by moritz
in thread Analyse an array and join only some elements of it by Istirion

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