From: Trans <transfire@...>
Date: 2007-11-27T23:02:28+09:00
Subject: Re: FEATURE SUGGESTION: Accept default value for to_f and to_i



On Nov 26, 9:15 pm, Mr Magpie <gazmcghees...@yahoo.com.au> wrote:
> I suggest that to_i() and to_f() have an optional parameter added with
> the default value of 0 (for backwards compatibility).
>
> This would allow code like
>
> if astring.to_f(nil)
>   # valid, so use it
> else
>   # not a valid float, nil was returned, so handle error
> end

  if (num = astring.to_f) == 0
    # may or may not be valid
    begin
      num = Float(astring)
    rescue
      # not a valid float, nil was returned, so handle error
    end
  end

  # valid num, so use it

You can wrap it in a "monkey patch" if you like.

T.