did prototype create a variable without using var?
<pre><code>Blog.prototype.signature = "TEXT"
</code></pre>

<p>did this statement here created a signature variable?</p>

<p>because this statement didnt have <strong>var keyword</strong> in it.<br /><br /></p>

<p><strong>Also additional question</strong></p>

<p>why need to use function literals or function reference to make a function inside the prototype of an object?</p>

<p>ex. this wont work....</p>

<pre><code>obj.prototype.toString{

    return "dfasdfa";

}
</code></pre>
