The ng-class directive dynamically binds one or more CSS classes to an HTML element. The value of the ng-class directive can be a string, an object, or an array. If it is a string, it should contain one or more, space-separated class names.

How do you use NG conditional class?

To add a conditional class in Angular we can pass an object to ngClass where key is the class name and value is condition i.e., true or false as shown below. And in the above code, class name will be added only when the condition is true.

What is ngClass in Angular JS?

The ng-class Directive in AngularJS is used to specify the CSS classes on HTML elements. It is used to dynamically bind classes on an HTML element. If the expression inside the ng-class directive returns true then only the class is added else it is not added. It is supported by all HTML elements.