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Re^4: The error says the value is uninitialized, but it works anyway

by AnomalousMonk (Bishop)
on Aug 18, 2019 at 21:22 UTC ( #11104661=note: print w/replies, xml ) Need Help??


in reply to Re^3: The error says the value is uninitialized, but it works anyway
in thread The error says the value is uninitialized, but it works anyway

my $regex    = join "|", @drop;

mizducky:   This technique has some gotchas associated with it. For a very good general discussion of the (update: very useful!) technique, see haukex's Building Regex Alternations Dynamically article.


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