From: Sebastian Hungerecker <sepp2k@...>
Date: 2007-11-01T00:20:07+09:00
Subject: Re: Array and ASCII Help needed...

Martin DeMello wrote:
> On 10/30/07, 7stud -- <bbxx789_05ss@yahoo.com> wrote:
> > Nope.  What do you think the following will output:
> >
> > h = Hash.new('hi')
> >
> > h['a'] = h['a'] || 10
> > puts h['a']
> >
> > Now, how about the following?  The same output as above?
> >
> > h['a'] ||= 10
> > puts h['a']
>
> Yes, and IRB confirms it (ruby 1.8.6). AFAIK, all the a o= b operators
> expand immediately to a = a o b.

Not in this case. Try p h instead of puts h['a'] above and you'll see
different results.


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