I have a problem on my filter when searching for a numerical value. I wish to have an exact search (using custum filter) on a "matricule" but it is a problem in my code and I do not know. this is my index :
<html>
  <head>
    <meta charset='utf-8'>
    <script src="js/angular.js"></script>
    <script src="js/app.js"></script>
    <link rel="stylesheet" href="css/bootstrap.css">
  </head>
    <body ng-app="MyApp">
    <div ng-controller="MyCtrl">
      <h3>Filter by numeric value</h3>
      <form class="form-inline">
        <input ng-model="match.matricule" type="text" placeholder="Filter by matricule" autofocus>
      </form>
      <ul ng-repeat="friend in (result = (friends | exact: match ) ) ">
        <li>{{friend.matricule}} - {{friend.name}} ({{friend.age}})</li>
      </ul>
      <p ng-show="result.length == 0"> Not Found </p>
      {{result}}
    </div>
  </body>
</html>
this is my controller :
var app = angular.module("MyApp", []);
app.controller("MyCtrl", function($scope) {
  $scope.friends = [
    { matricule :1 , name: "Peter",   age: 20 , region : 'analamanga1'},
    { matricule :2 ,name: "Pablo",   age: 55 , region : 'analamanga2'},
    { matricule :3 ,name: "Linda",   age: 20 , region : 'analamanga3'},
    { matricule :4 ,name: "Marta",   age: 37 , region : 'analamanga4'},
    { matricule :5 ,name: "Othello", age: 20 , region : 'analamanga5'},
    { matricule :11 ,name: "Markus",  age: 32 , region : 'analamanga6'}
  ];
  $scope.filterFunction = function(element) {
    return element.name.match(/^Ma/) ? true : false;
  };
})
app.filter('exact', function(){
  return function(items, match){
    var matching = [], matches, falsely = true;
    
    // Return the items unchanged if all filtering attributes are falsy
    angular.forEach(match, function(value, key){
      falsely = falsely && !value;
    });
    if(falsely){
      return items;
    }
    
    angular.forEach(items, function(item){ 
      matches = true;
      angular.forEach(match, function(value, key){ // e.g. 'all', 'title'
        if(!!value){ 
          matches = matches && (item[key] === value);  
        }
      });
      if(matches){
        matching.push(item);  
      }
    });
    return matching;
  }
});
sample : plnkr SAMPLE
THANKS