Tutorial 10.2 Creating Custom Filters

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******************************************INDEX.HTML*****************************************************
<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Example - example-filter-reverse-production</title>
 

  <script src="//code.angularjs.org/snapshot/angular.min.js"></script>
  <script src="script.js"></script>
 

 
</head>
<body ng-app="myReverseFilterApp">
  <div ng-controller="MyController">
  <input ng-model="greeting" type="text"><br>
  No filter: {{greeting}}<br>
  Reverse: {{greeting|reverse}}<br>
  Reverse + uppercase: {{greeting|reverse:true}}<br>
  Reverse, filtered in controller: {{filteredGreeting}}<br>
</div>
</body>
</html>
******************************************INDEX.HTML*****************************************************
********************************************script.js***************************************************
(function(angular) {
  'use strict';
angular.module('myReverseFilterApp', [])
  .filter('reverse', function() {
    return function(input, uppercase) {
      input = input || '';
      var out = '';
      for (var i = 0; i < input.length; i++) {
        out = input.charAt(i) + out;
      }
      // conditional based on optional argument
      if (uppercase) {
        out = out.toUpperCase();
      }
      return out;
    };
  })
  .controller('MyController', ['$scope', 'reverseFilter', function($scope, reverseFilter) {
    $scope.greeting = 'hello';
    $scope.filteredGreeting = reverseFilter($scope.greeting);
  }]);
})(window.angular);
********************************************script.js***************************************************

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