From: Robert Klemme <shortcutter@...>
Date: 2007-11-16T19:12:03+09:00
Subject: Re: Yielding an object and caring about the result: the cousin of Object#tap

2007/11/16, Sean O'Halpin <sean.ohalpin@gmail.com>:
> I also find myself using this pattern:
>
>   if response = http.response # i.e. expecting nil or false on failure
>     response.foo
>     # etc.
>   else
>     ...
>   end

I seriously dislike the pattern above for the following reasons: it
can be easily misread as "if response == http.response" and there is
no need to have an assignment inside an if condition.  In this case I
prefer an extra variable setter or using "and" if there is just one
statement:

response = http.response

if response
  ...
end

response = http.response and puts response

The situation is different with loops because there often this is the
most elegant solution:

while line = gets
 ...
end

Cheers

robert

-- 
use.inject do |as, often| as.you_can - without end