title: ng-select gives only string, but I want an integer
body: <p>This is my angular html file code. In my mongo database <code>frequencyType</code> added as <code>frequencyType = &quot;1&quot;</code>, but I want <code>frequencyType = NumberInt(1);</code></p>
  <pre class="lang-html prettyprint-override"><code>&lt;div class=&quot;span4&quot;&gt;
    &lt;select class=&quot;span12 combobox&quot; ng-model=&quot;frequencyType&quot; required&gt;
      &lt;option value=&quot;1&quot;&gt;Daily&lt;/option&gt;
      &lt;option value=&quot;2&quot;&gt;Weekly&lt;/option&gt;
      &lt;option value=&quot;3&quot;&gt;Monthly&lt;/option&gt;
      &lt;option value=&quot;4&quot;&gt;Yearly&lt;/option&gt;
    &lt;/select&gt;
  &lt;/div&gt;
  </code></pre>
  <p>I get in my database <code>frequencyType = &quot;1&quot;</code> but I want <code>frequencyType = NumberInt(1)</code>.</p>