From: "David A. Black" <dblack@...>
Date: 2010-01-01T20:09:17+09:00
Subject: Re: Why can't I use "or" here?

Hi --

On Thu, 31 Dec 2009, Phillip Gawlowski wrote:

> On 31.12.2009 11:35, Albert Schlef wrote:
>> Then why can I do this?
>>
>>      puts (123 or true)
>> 
>> Are you going to tell me that "123 or true", unlike "123 if true",
>> *isn't* a statement?
>
> I'm afraid I am. It's an evaluation. Boolean evaluation (with "and" / "or" 
> having lower precedence than && / ||).
>
>> If "123 or true" isn't a statement, then it's a simple expression. And
>> then I would be able to do:
>
> Take a third option: It's an evaluation. ;)

Everything evaluates to something (an object) though. Evaluation is
more a process than a special kind of syntactic construct.

>> No, no, no. By `puts (123 if true)` I mean: output the result of `123 if
>> true`.
>
> That's what I said, I was just verbose about it. ;)

I think you said:

> It is obvious, to you, that you *mean* "output 123, if 123 is true".

The code doesn't test for the truth value of 123.


David

-- 
David A. Black
Senior Developer, Cyrus Innovation Inc.
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