title: Angular 2..4 *ngIF compound condition Is there a syntax for and/or?
body: <p>I did see somewhere that something like <strong>::</strong> was valid for <strong>*ngIf</strong> in another Stack Overflow question, but I think that related to AngularJS. I can't recall seeing any mention in the angular.io docs of something like &amp;&amp; or || being valid in Angular 2..4 template syntax.
  If it is squirrelled away somewhere, can someone point me to the relevant section, as my Google kung fu has eluded me on this one.
  Thanks.</p>