Will declaring a variable inside/outside a loop change the performance?
<p>Is this:</p>

<pre><code>foreach(Type item in myCollection)
{
   StringBuilder sb = new StringBuilder();
}
</code></pre>

<p>much slower than:</p>

<pre><code>StringBuilder sb = new StringBuilder();

foreach(Type item in myCollection)
{
   sb = new StringBuilder();
}
</code></pre>

<p>In other words, will it really matter where I declare my <code>StringBuilder</code>?</p>
