title: Angular 6 radio button is not checked
body: <p>I have the following piece of code,</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;div class="col-md-6 col-lg-6 col-xl-6 mb-5"&gt;
    &lt;label&gt;Versioning&lt;/label&gt;&lt;br/&gt;
    &lt;div class="form-check form-check-inline"&gt;
      &lt;input class="form-check-input" type="radio" name="versioning" value="Enabled" ngModel #versioning="ngModel"&gt;
      &lt;label class="form-check-label"&gt;Enabled&lt;/label&gt;
    &lt;/div&gt;
    &lt;div class="form-check form-check-inline"&gt;
      &lt;input class="form-check-input" type="radio" name="versioning" checked=”checked” value="Disabled" ngModel #versioning="ngModel"&gt;
      &lt;label class="form-check-label"&gt;Disabled&lt;/label&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I want the "Disabled" radio button, selected by default. I tried giving checked, <code>checked="checked"</code>, <code>[checked]="true"</code>, <code>checked="true"</code> but nothing works.</p>
  
  <p>I searched for similar questions in Stack Overflow and didn't found any answer.</p>