Angular 2 ngClass both array and object syntax together?

Question

In angular 1.x, I can use a combination of the array and object syntax in the same statement, like this:

<div ng-class="[classNameFromController, {'show' : booleanFromController}]"></div>

The same does not work in Angular 2 with the same approach:

<div [ngClass]="[classNameFromController, {'show' : booleanFromController}]"></div>

I can't find anything that suggests it can be done.

What gives?

Cheers!

Answer 1

From the docs:

<some-element [ngClass]="stringExp|arrayExp|objExp">

which means one of stringExp|arrayExp|objExp (but not two of ;-) )