From: Matt Mongeau <halogenandtoast@...>
Date: 2013-03-02T03:38:58+09:00
Subject: Re: Why class returns `null` but the definition not when their description ended in IRB?

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Because that's how it is implemented.


2013/3/1 Kumar R. <lists@ruby-forum.com>

> The below class description returns its last evaluated expression :
>
> >> class A
> >> 1+7
> >> 2+4
> >> end
> => 6
>
> To return `6` which method the expression generally called?
>
> But why the definition always `nil` ?
>
> >> def D
> >> 3+5
> >> end
> => nil
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

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<div dir="ltr">Because that&#39;s how it is implemented.</div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/3/1 Kumar R. <span dir="ltr">&lt;<a href="mailto:lists@ruby-forum.com" target="_blank">lists@ruby-forum.com</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">The below class description returns its last evaluated expression :<br>
<br>
&gt;&gt; class A<br>
&gt;&gt; 1+7<br>
&gt;&gt; 2+4<br>
&gt;&gt; end<br>
=&gt; 6<br>
<br>
To return `6` which method the expression generally called?<br>
<br>
But why the definition always `nil` ?<br>
<br>
&gt;&gt; def D<br>
&gt;&gt; 3+5<br>
&gt;&gt; end<br>
=&gt; nil<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Posted via <a href="http://www.ruby-forum.com/" target="_blank">http://www.ruby-forum.com/</a>.<br>
<br>
</font></span></blockquote></div><br></div>

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