From: Robin Stocker <robin@...>
Date: 2006-08-25T06:16:40+09:00
Subject: Re: Alternative to String#to_i ?

Jeremy Lizt wrote:
> Is there an alternative method to String#to_i that will return nil
> instead of zero for invalid numerical strings?

You could use #Integer:

 >> Integer("1")
=> 1
 >> Integer("0")
=> 0
 >> Integer("a")
ArgumentError: invalid value for Integer: "a"
         from (irb):3:in `Integer'
         from (irb):3