From: Tony Arcieri <tony.arcieri@...>
Date: 2012-09-04T01:21:43+09:00
Subject: Re: What makes Ruby a dynamic language?

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On Mon, Sep 3, 2012 at 4:32 AM, Robert Klemme <shortcutter@googlemail.com>wrote:

> An important point which apparently hasn't been mentioned yet is
> dynamic typing vs. static typing: in Ruby variables are typeless while
> in statically typed languages they are typed.
>
> https://en.wikipedia.org/wiki/Dynamic_typing#Dynamic_typing


Bingo. In statically typed languages, the compiler knows all types at
compile time. In dynamically typed ("untyped") languages, in many cases
it's not possible to know all types at compile time because they haven't
all been declared.

-- 
Tony Arcieri

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<div class=3D"gmail_quote">On Mon, Sep 3, 2012 at 4:32 AM, Robert Klemme <s=
pan dir=3D"ltr">&lt;<a href=3D"mailto:shortcutter@googlemail.com" target=3D=
"_blank">shortcutter@googlemail.com</a>&gt;</span> wrote:<br><blockquote cl=
ass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;p=
adding-left:1ex">

<div class=3D"im">An important point which apparently hasn&#39;t been menti=
oned yet is</div>
dynamic typing vs. static typing: in Ruby variables are typeless while<br>
in statically typed languages they are typed.<br>
<br>
<a href=3D"https://en.wikipedia.org/wiki/Dynamic_typing#Dynamic_typing" tar=
get=3D"_blank">https://en.wikipedia.org/wiki/Dynamic_typing#Dynamic_typing<=
/a></blockquote><div><br></div><div>Bingo. In statically typed languages, t=
he compiler knows all types at compile time. In dynamically typed (&quot;un=
typed&quot;) languages, in many cases it&#39;s not possible to know all typ=
es at compile time because they haven&#39;t all been declared.</div>

</div><div><br></div>-- <br>Tony Arcieri<br><br>

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