From: sto.mar@...
Date: 2013-01-06T18:08:35+09:00
Subject: Re: Best practice for &&, ||, and, or

Am 06.01.2013 09:43, schrieb David Gamba:
> One thing that I don't like with ruby precedence however, is that ruby
> developers decided to give "and" and "or" the same precedence.

But note that && has higher precedence than ||.

> In my opinion, "or" should have lower precedence than "and", just like
> in perl, wich allows you to do things like:
>
> if <e_1> and <e_2> or <e_3> and <e_4>
>
> Knowing that expression 3 and 4 will only be executed if 1 and 2 are not
> true.
>
> I suppose that they went for left to right readability so you have to
> evaluate everything as you read it.
>
> so to get something similar in ruby you have to write:
>
> if (<e_1> and e_2>) or (<e_3> and <e_4>)


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