title: What is ngModule in input field in form
body: <p>I'm new abount Angular and I read a lot of tutorial, Suppose to have this code :</p>
  
  <pre><code> &lt;input type="text" id="username" class="form-control" [(ngModel)]="username" name="username" required&gt;
  </code></pre>
  
  <p>I understand that <code>[(ngModel)]</code> can map the input field value with the variable username. Now look this code:</p>
  
  <pre><code>    &lt;form ngNativeValidate (ngSubmit)="onSubmit()" #f="ngForm"&gt;
  ....
       &lt;input type="text" id="username" class="form-control" ngModule name="username" required&gt;
      &lt;/form&gt;
  </code></pre>
  
  <p>What is the difference between <code>ngModule</code> and <code>[(ngModel)]</code> ?</p>