From: Robert Klemme <shortcutter@...>
Date: 2010-06-19T01:19:13+09:00
Subject: Re: shorthand

2010/6/14 Roger Pack <rogerpack2005@gmail.com>:
> I read this once:
>
> Operator ||= can be shorthand for code like:
>  x = "(some fallback value)" unless respond_to? :x or x
>
> How would that look like exactly, in shorthand, any guesses?

You can do this:

x ||= (x() rescue "(some fallback value)")

I did not think about this long enough to look at all the effects with
local variables shadowing methods but it's something you can play
with. :-)

Kind regards

robert

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