What is the best way to conditionally apply a class?

Question

Lets say you have an array that is rendered in a ul with an li for each element and a property on the controller called selectedIndex.

Answer 1

We can make a function to manage return class with condition

And then

AngularJS ng-class if example

    

        
{{icolor}}
    


Other way using : ng-class="{'class1' : expression1, 'class2' : expression2,'class3':expression2,...}"

    

        
{{icolor}}
    

You can refer to full code page at ng-class if example