Insert conditional css class in AngularJs (Mini-challenge 7) Answer

Check out Mini-challenge 7 Instructions

Answer:Insert conditional css class in AngularJs (Mini-challenge 7) Answer

 

In this case you have an array of object that is rendered in a ul with an li for each element and a property on the controller called selectedIndex.
In this scenario we have to Insert conditional css class in the htmls view.

Insert conditional css class

Using the ng-class directive should be the answer.
The simplest way to implement conditional css class in angular is using the object notation within the ng-class directive.

<li ng-class="{green: $index==selectedIndex}">

With this object notation ({green: $index==selectedIndex}), we can put a condition on where we want to apply the css class. In this specific case we are using the $index build-in variable for ng-repeat, like this.

<div ng-controller="Ctrl">  
<ul>
    <li ng-class="{green: $index==selectedIndex}" ng-repeat="item in list"> <!--apply "green" class to the 3er element -->
       {{item.name}}
    </li>
</ul>
</div>

Here is the ng-class official documentation:
https://docs.angularjs.org/api/ng/directive/ngClass

See working codde below:

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