Handling the CSS classes

AngularJS provides the ng-class directive to include or exclude CSS classes. Similarly, Angular has the ngClass directive to apply or remove CSS classes based on the expression. Class binding is another better option provided by Angular to add or remove a CSS class.

AngularJS:

<div ng-class="{active: isActive}"> 

Angular:

<div [ngClass]="{active: isActive}"> 
<div [class.active]="isActive"> 

Notice the class binding applied to the second div in Angular.