JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app="myApp">
    <ul ng-controller="myCtrl">
        <li ng-repeat="item in items" class="commonClass" ng-class="{'on': showVar}" ng-click="showVar=!showVar">
            {{ item.name }}
        </li>
    </ul>
</div>

CSS

.on {
    color:red
}

JavaScript

var app = angular.module('myApp', []);

app.controller('myCtrl', function($scope) {
	$scope.items = 
    [
        {name: "Apple"},
        {name: "Banana"},
        {name: "California"}
    ]
})