In scalar context m//g doesn't return size of the list it would give back when called in list context,

If you want the number of elements in the list returned by a pattern with the /g modifier when evaluated in list context, you can use a list assignment in scalar context, which produces the number of its elements. In this case, we assign to an empty list: 

$_ = "456";
$count = () = /./g;
print $count;
# prints 3

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In reply to Re: m//g behaves strange... by converter
in thread m//g behaves strange... by Anonymous Monk

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