Perl: checking if a value is a float
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Submitted by chantra on Fri, 04/11/2008 - 09:08
While some languages offer an is_float function, Perl seems to only rely on regex.
This tutorial will show how to find if a variable contains an integer or not.
$ ./isfloat.pl a is NOT a float 12.3 is a float 12 is NOT a float a23 is NOT a float