From: Robert Klemme <shortcutter@...>
Date: 2013-02-23T18:45:12+09:00
Subject: Re: Not able to understand the difference between "||=" and "|=".

On Fri, Feb 22, 2013 at 11:51 PM, Xavier R. <lists@ruby-forum.com> wrote:
> Hans Mackowiak wrote in post #1098517:
>> [] is not nil or false
>>
>> if []
>>  p "like true"
>> else
>>  p "like false"
>> end
>>
>>
>> guess what this lines will output?
>
> got the point. Could you give me a valid example of "&&=" ?

I think I have something even better: advice how to find out yourself.
 Fire up IRB and then start experimenting.  It's best to start from
simple expressions, so first for different combinations of a and b do

a && b

Look at the result.  Then do

a &&= b
a ||= b

Reason about what you see.  If unsure, do more tests.

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/