title: jQuery Remove All Elements from Select with Value
body: <p>I have simple select that looks like this:</p>
  
  <pre><code>&lt;select id="region"&gt;
    &lt;option value=""&gt; -- country -- &lt;/option&gt; 
    &lt;option value="842554592"&gt;Alberta&lt;/option&gt; 
    &lt;option value="708812360"&gt;Ontario&lt;/option&gt;
    ...
  &lt;/select&gt;
  </code></pre>
  
  <p>I want to clear non-blank values and am wondering if jQuery has a simple method for this. I'm using:</p>
  
  <pre><code>$('.country').find('option[value!=""]').remove();
  </code></pre>
  
  <p>Which seems a bit ugly. Thanks!</p>