title: ngModel does not work in the input field
body: <p>I'm just starting with Angular and trying a simple thing. Angular should update DOM when I type a name in the input field. However when I use these brackets [] like [(ngModel)] not only does it not work, but the input field disappears from the DOM. Without these [] brackets it does not work either. Please help</p>
  
  <p>app.component.html file</p>
  
  <pre><code> input type="text" [(ngModel)] = "name"&gt;
   &lt;p&gt;{{ name }}&lt;/p&gt; 
  </code></pre>
  
  <p>app.component.ts file</p>
  
  <pre><code>import { Component } from '@angular/core';
  @Component({
  selector: 'app-root',
  templateUrl: '.app.component.html',
  styleUrls: ['./app.component.css']
  })
  export class AppComponent {
  name = '';
  }
  </code></pre>