JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<body ng-app>
<div ng-controller="helloCtrl">
  <input type="text" ng-model="hello">
  <span>{{hello}}</span>
  <button ng-click="goodbye()">Good Byeに変更</button>
</div>
</body>
</html>

JavaScript

function helloCtrl($scope){
    $scope.hello = "Hello, World!";    
    $scope.goodbye = function(){
     $scope.hello="Good Bye";   
    };
}