From: 7stud -- <bbxx789_05ss@...>
Date: 2008-05-08T17:14:42+09:00
Subject: Re: to check for numericality

Sijo Kg wrote:
> Hi
>   I have
>   @val=SomeValue           #for example 00,02,aa
>   How can I check @val contains only numeriacal(including zero)
> values..I have to avoid aa above (for example )
> 
> Sijo

data = ["00", "aa", "0a", "a0", "02"]

data.each do |str|
  if str =~ /\D/
    print "bad data: ", str
    puts
  end
end

--output:--
bad data: aa
bad data: 0a
bad data: a0
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