I tried to do it using regular expressions but I couldn't have a clear shot, there is another feature, use the complement operator, In order to determine if a variable is a number or a string, employ the principle that &ing a variable with its complement should give 0 as a result if that variable holds a number, whereas it is not the case when that variable is a string.

try extending on this principle, here is a snippet: 

my $x=111;
my $y="111";

print "\$x is a number\n" if !($x & ~$x);
print "\$y is a string\n" if ($y & ~$y);

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In reply to Re: How to check if a scalar value is numeric or string? by biohisham
in thread How to check if a scalar value is numeric or string? by bgupta

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