From: Rob Biedenharn <Rob@...>
Date: 2007-10-05T23:12:07+09:00
Subject: Re: finding obscure documentation

On Oct 5, 2007, at 9:29 AM, Lloyd Linklater wrote:
> I have learned that you can turn a number to octal (or whatever) this
> way:
>
> p 123.to_s(8).to_i
> => 173
>
> I seem to recall that there is something which will read *in* a number
> in an arbitrary numeric base, though I forget just how to do that.
>
> My question is, where is this and things like it documented?  I have
> searched several books to no avail.

irb(main):001:0> "173".to_i(8)
=> 123

ri String#to_i

and you don't need the .to_i on your example.  If the base it more  
than 10, it won't work anyway.

irb(main):002:0> 26.to_s(16).to_i
=> 1
irb(main):003:0> 26.to_s(16)
=> "1a"

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com