var searchVal;

angular.module('CustomFilterModule', [])

  .filter('myFilter', function() {

  return function( input ) {

    searchVal = searchVal || '';

    var s = searchVal.toLowerCase();

    var arr = [];

    for (var i = 0; i < input.length; i++) {

      if(input[i].name.toLowerCase().indexOf(s) === 0 || input[i].country.toLowerCase().indexOf(s) === 0) arr.push(input[i]);

    }

​

    return arr;

  };

});

​

angular.module('ngFilterApp', ['CustomFilterModule'])

  .controller('namesCtrl', function($scope) {

  $scope.names = [

    {name:'Moscow',country:'Russia'},

    {name:'Kiev',country:'Ukraine'},

    {name:'Yerevan',country:'Armenia'},

    {name:'Washington',country:'USA'},

    {name:'Madrid',country:'Spain'},

    {name:'Tbilisi',country:'Georgia'}

  ];

​

  $scope.$watch('search', function() { searchVal = $scope.search; }, true);

});