Angular Computed Property

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.2/underscore-min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.6/angular.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.0/css/bootstrap-combined.min.css">

<div ng-app>
  <div ng-controller="SomeCtrl">
      
      <h1>With memoization</h1>
      <input ng-model="textProperty"/>      
      <span>{{computedMemoizedProperty(textProperty)}}</span> 
      
  </div>
</div>

JavaScript

function SomeCtrl($scope) {
  $scope.textProperty = "initial";
  var memoizedTimes = 0;
  $scope.computedMemoizedProperty = _.memoize(function(){
    console.log(++memoizedTimes);
    return $scope.textProperty + " asdf";
  });
    
}