From: Gary Wright <gwtmp01@...>
Date: 2007-03-04T02:34:00+09:00
Subject: Re: Programming Ruby book p.50 (Fibonacci yield example)


On Mar 3, 2007, at 12:13 PM, Mike Glaz wrote:
> 5.     i1, i2=i2, i1+i2
[...]
> But I have no clue what is happenening in line 5.

The spacing in your text is a bit misleading.
This makes it a little clearer:

       i1,i2  =  i2,(i1+i2)

This is Ruby's multiple assignment statement. The
expressions on the right are evaluated into a list and
assigned, in order, to the variables on the left.

Gary Wright