What's the difference between:
$re=qr/foo/i;
s/$re/bar/;

[download]
and
s/foo/bar/io;

[download]

Which is fastest ? most efficient/elegant ?
Sorry if my question is stupid, but I didn't find anything in my camel book (2nd edition) about qr

In reply to difference between qr// and the use of the o modifier ? by arhuman

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