Is it a real number?

I'm looking for a number somewhere between -10000 and 10000.

if (($_ < -9999) || ($_ >9999)) {
     print "\nIt's a number, but out of range\n";
} elsif ($_ >-10000) && ($_ <10000) {
    print "\nPerfect\n";
} elsif ($_ is an alpha/number or just contains alpha) {
    print"\nNumber expected, this contains other characters\n";
} else {print "\nShouldn't get here\n";}

I specifically need to know how to determine if $_ is a number or not.
rambleAsked:
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TintinConnect With a Mentor Commented:
Very much depends on your definition of a number, but for the common case, you can use:

$var='abc';
print "$var is not a number\n" unless ($var =~ /\d+$/);
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FishMongerConnect With a Mentor Commented:
unless ($_ =~ /\D/) { # proceed only if it's an integer

   if ($_ >= -10000  && $_ <= 10000) {
      print  "\nPerfect\n";
   }
   else {
      print "\nIt's a number, but out of range\n";
   }
}
0
 
ozoCommented:
perldoc -q "How do I determine whether a scalar is a number/whole/integer/float?"
0
 
rambleAuthor Commented:
Thanks_ramble

Just Ignore the last comment
0
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