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Check if Perl value is alpha or numeric 1
- Thread starter kb0rhe
- Start date
-
1
- #2
numeric is harder to check than for simple digits:
some ways that might work:
more ways to check here:
- Kevin, perl coder unexceptional!
some ways that might work:
Code:
if (/\D/) {
print "there is something that is not a digit";
}
Code:
if (/^\d+$/) {
print "there are only digits in this thing so it's numeric.";
}
Code:
if (/\d/ && /^-?\d*\.?\d*$/) {
print "an integer, negative number, or a decimal but not some other type of numeric value";
}more ways to check here:
- Kevin, perl coder unexceptional!
- Status