ng class based on condition in angular 6 code example
Example 1: Angular 8 ngClass If
[ngClass]="(step=='step1')?'my-class1':'my-class2'"
Example 2: Angular 8 ngClass If
[class.my-class]="step=='step1'"
[ngClass]="(step=='step1')?'my-class1':'my-class2'"
[class.my-class]="step=='step1'"