$seq{$chr} = join ("",$_);

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The join Perl built-in joins a list of strings. In the statement above, the list consists in the single string contained in the  $_ scalar, so the output of  join will be exactly the same as the input.

In reply to Re^3: concatenating multiple lines without using . operator by AnomalousMonk
in thread concatenating multiple lines without using . operator by anonym

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