Angular 2 template tags say object is undefined

Question

Dealing with strange issue in Angular 2.

If you look in the component below, the service returns a parsed object – for instance I can console.log it. Yo

Answer 1

Try: {{theData?.subject}} or <span *ngIf="theData">{{theData.subject}}</span>.

The why is in lots of duplicated questions:

Angular 2: TypeError: l_thing0 is undefined in [{{thing.title}} in AppComponent@4:44]