From: Mike Stephens <rubfor@...>
Date: 2011-01-18T16:47:11+09:00
Subject: Re: Calling by Reference - Two Questions

Interesting.

I'm trying to see the pattern here. Ruby doesn't change arr's object if
it is refering to elements already present. However (I can only test
this in tryruby at this moment) it does change the object and therefore
lose the change if I do:

def myswapx(arr)
 arr[2] = 3
end

So what's the rule?

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