class.active angular 6 code example

Example 1: ngclass condition

[ngClass]="(step=='step1')?'my-class1':'my-class2'"

Example 2: Angular 8 ngClass If

[ngClass]="(step=='step1')?'my-class1':'my-class2'"

Example 3: add classon ng if

[ngClass]="{'my-class': step === 'step1'}"

Example 4: Angular 8 ngClass If

[ngClass]="{1:'my-class1',2:'my-class2',3:'my-class4'}[step]"