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Re: Detecting if a scalar has a number or string

by ysth (Canon)
on Nov 18, 2004 at 21:15 UTC ( [id://408889]=note: print w/replies, xml ) Need Help??

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  1. or download this
    $a = 'string';
if (defined ($a <=> $a)) { print "Oops"; }
  2. or download this
    my $Inf = 9**9**9;
my $NaN = sin($Inf);
print "inf is: $Inf\n", "NaN is: $NaN\n";

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