From: Thomas Preymesser <thopre@...>
Date: 2013-02-11T22:04:28+09:00
Subject: Re: firtst and only element of array (noob level)

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Am 11.02.2013 13:27 schrieb "Ronnie Aa" <lists@ruby-forum.com>:
>
> Hello people,
>
> Lets say i have
> arr = [100]
> and
> i = 100
>
> Now i do calculation:
> i * arr[0] ==> 10000 # works ok
> but
> i * arr ==> Error
>
> Why arr != arr[0] with only one element in the array?

arr is the whole Array object and arr[0] is the first element of the array
(= 100) and these are not equal.

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<p><br>
Am 11.02.2013 13:27 schrieb &quot;Ronnie Aa&quot; &lt;<a href="mailto:lists@ruby-forum.com">lists@ruby-forum.com</a>&gt;:<br>
&gt;<br>
&gt; Hello people,<br>
&gt;<br>
&gt; Lets say i have<br>
&gt; arr = [100]<br>
&gt; and<br>
&gt; i = 100<br>
&gt;<br>
&gt; Now i do calculation:<br>
&gt; i * arr[0] ==&gt; 10000 # works ok<br>
&gt; but<br>
&gt; i * arr ==&gt; Error<br>
&gt;<br>
&gt; Why arr != arr[0] with only one element in the array?</p>
<p>arr is the whole Array object and arr[0] is the first element of the array (= 100) and these are not equal.</p>

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