How to use if-else condition with [ngClass] in angular 7? [duplicate]

Question

I want to use multiple classes inside Angular [ngClass]. I have two classes, It should work accordingly as per the condition of the flag, that are already passed from the component.ts.

Answer 1

Do like this:

<div [ngClass]="condition ? 'class1' : 'class2' " ></div>

(Ternary Operator Usage)