give active class onclick in ngFor angular 2

Question

Hi I have unordered list and all of them have active class. I want to toggle active class when clicked to any list item. My code is like this

Answer 1

I believe you can find your answer here: AngularJs - Best-Practices on adding an active class on click (ng-repeat)

You can target and apply CSS to an item/object through Angular's $index. The post explains and demonstrates the logic better than I can.