title: Angular create Selector Tag <app-component> using variable or loop
body: <p>I need to make the Selector Tag of my app.component.html using a variable.</p>
  
  <p>Suppose variable name is: <code>componentVar:string</code></p>
  
  <p>I need my app.component.html:</p>
  
  <p><code>&lt;componentVar&gt;&lt;/componentVar&gt;</code> or <code>&lt;app-componentVar&gt;&lt;/app-componentVar&gt;</code></p>