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Determine If A Syntactically Correct Series Of Characters Is Numeric (in A Way Cool Way Returning True Or False) In Ruby

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http://www.ruby-forum.com/topic/88507

Re: ruby equivalent PHP function is_numeric?
Posted by David Vallner (Guest) on 18.11.2006 02:27  
ara.t.howard@noaa.gov wrote:
>>
>> thanks
>>
>> joss
> 
> 
> 
>   harp:~ > cat a.rb
>   def is_numeric?(n) Float n rescue false end
> 

def is_numeric?(n) begin Float n; return true rescue false end

Predicate methods not returning a boolean make my skin crawl even if
it's all the same difference for conditionals.

David Vallner
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