From: "Gennady F. Bystritsky" <gfb@...>
Date: 2002-11-15T02:05:08+09:00
Subject: Re: Integer to Hex


----- Original Message -----
From: "Wesley J. Landaker" <wjl@icecavern.net>
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Thursday, November 14, 2002 8:56 AM
Subject: Re: Integer to Hex


> Apparently, Shaun Smith recently wrote:
> > Hi,
> > Is there an easy way to get from an Integer to a hex representation
> > (i.e. the opposite of String#hex)?
> > Regards,
> > Shaun.
>
> There are lots of ways to do it; here is one way:
>
> x = 10
> sprintf("%x", x)  # -> "a"
>
> This is nice because you can get it in different forms:
>
> sprintf("0x%x", x)  # -> "0xa"
> sprintf("0x%04x", x)  # -> "0x000a"
>

I prefer this form:
i = 10
"%x" % i

and correspondingly

"0x%x" % i
"0x%04x" % i

This form is exact equivalent to sprintf, however look more Ruby-like ;-)

> Simple and easy to use... assuming you think sprintf is simple and easy to
> use. ;)
>
>
>
>
>