title: Add condition by [attr.data-show] values in template
body: <p>I am trying to implement a condition in template using <code>attr.data-show</code> attribute value. but it's not works. what is the correct way to handle this?</p>
  
  <p>here is my code :</p>
  
  <pre><code>&lt;p [attr.data-show]="false" *ngIf="{{this.attr.data-show}}"&gt;
    Start editing to see some magic happen :)
  &lt;/p&gt;
  </code></pre>
  
  <p>any one help me?</p>
  
  <p><a href="https://stackblitz.com/edit/angular-ivy-gjbhca" rel="nofollow noreferrer">Live Demo</a></p>
  
  <p>Thanks in Advance.</p>