Hi,
 ngClass doesn't work when hyphen is used. Consider the following scenario 
where I am getting data from backend that has status as one of it's 
properties.

<div *ngFor="#data of myData">
   <div [ngClass]="'data.status-circle"></div>
   </div>
</div>

Consider that data.status returns 'critical' from backend. Now we should be 
able to bind the following css with the ngClass. But the use of hyphen 
restricts this binding. Although the binding will work by simply using 
data.status in the html and only .critical in css, but I want to append 
something to it because this ngClass with name critical may be used in many 
other places. How do I achieve this ?

In the css file, I have the following :

.critical-circle {
  width:15px;
  height:15px;
}


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