From: Mike <mike@...>
Date: 2001-05-29T19:54:04+09:00
Subject: [ruby-talk:15922] Re: is it possible to dynamically coerce objects  types in Ruby?

On Tue, 29 May 2001 11:18:30 +0900
mirian@cosmic.com (Mirian Crzig Lennox) wrote:

> 
> So this is why "Hello".to_i returns 0, but "Hello".to_int is an error.
> The 0 represents how many toes are left after making the shoe fit. :)
> 

So what about a String#to_int method that would raise an exception (or return nil) if the string is not a pure number represented in a string?

Something like:

class String
  def to_int
    raise TypeError, "#{inspect} is not a number" unless self =~ /^[+-]?\d+$/
    to_i
  end
end

Maybe the same for String#to_float?


Mike.