JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.angularjs.org/angular-0.9.19.min.js" ng:autobind></script>
   <ul ng:controller="Main">
    <li ng:repeat="datum in data">{{datum}}
       <a ng:click="use_data1()">Data1</a>
       <a ng:click="use_data2()">Data2</a>
    </li>
   </ul>

JavaScript

function Main() {
    this.data1 = [1, 2, 3];
    this.data2 = [4, 5, 6];
    this.data = this.data1;
    this.use_data1 = function() {
        this.data = this.data1;
    };
    this.use_data2 = function() {
        this.data = this.data2;
    };
}