ponepaste/assets/app_bs2.js

$('.example_typeahead > > input').tagsinput({
    typeahead: {
        source: function (query) {
            return $.getJSON('assets/citynames.json');
        }
    }
});

$('.example_objects_as_tags > > input').tagsinput({
    itemValue: 'value',
    itemText: 'text',
    typeahead: {
        source: function (query) {
            return $.getJSON('assets/cities.json');
        }
    }
});
$('.example_objects_as_tags > > input').tagsinput('add', {"value": 1, "text": "Amsterdam", "continent": "Europe"});
$('.example_objects_as_tags > > input').tagsinput('add', {"value": 4, "text": "Washington", "continent": "America"});
$('.example_objects_as_tags > > input').tagsinput('add', {"value": 7, "text": "Sydney", "continent": "Australia"});
$('.example_objects_as_tags > > input').tagsinput('add', {"value": 10, "text": "Beijing", "continent": "Asia"});
$('.example_objects_as_tags > > input').tagsinput('add', {"value": 13, "text": "Cairo", "continent": "Africa"});

$('.example_tagclass > > input').tagsinput({
    tagClass: function (item) {
        switch (item.continent) {
            case 'Europe'   :
                return 'label label-info';
            case 'America'  :
                return 'label label-danger label-important';
            case 'Australia':
                return 'label label-success';
            case 'Africa'   :
                return 'label';
            case 'Asia'     :
                return 'label label-warning';
        }
    },
    itemValue: 'value',
    itemText: 'text',
    typeahead: {
        source: function (query) {
            return $.getJSON('assets/cities.json');
        }
    }
});
$('.example_tagclass > > input').tagsinput('add', {"value": 1, "text": "Amsterdam", "continent": "Europe"});
$('.example_tagclass > > input').tagsinput('add', {"value": 4, "text": "Washington", "continent": "America"});
$('.example_tagclass > > input').tagsinput('add', {"value": 7, "text": "Sydney", "continent": "Australia"});
$('.example_tagclass > > input').tagsinput('add', {"value": 10, "text": "Beijing", "continent": "Asia"});
$('.example_tagclass > > input').tagsinput('add', {"value": 13, "text": "Cairo", "continent": "Africa"});

angular.module('AngularExample', ['bootstrap-tagsinput'])
    .controller('CityTagsInputController',
        function CityTagsInputController($scope, $http) {
            // Init with some cities
            $scope.cities = [
                {"value": 1, "text": "Amsterdam", "continent": "Europe"},
                {"value": 4, "text": "Washington", "continent": "America"},
                {"value": 7, "text": "Sydney", "continent": "Australia"},
                {"value": 10, "text": "Beijing", "continent": "Asia"},
                {"value": 13, "text": "Cairo", "continent": "Africa"}
            ];

            $scope.queryCities = function (query) {
                return $http.get('assets/cities.json');
            };

            $scope.getTagClass = function (city) {
                switch (city.continent) {
                    case 'Europe'   :
                        return 'label label-info';
                    case 'America'  :
                        return 'label label-danger label-important';
                    case 'Australia':
                        return 'label label-success';
                    case 'Africa'   :
                        return 'label';
                    case 'Asia'     :
                        return 'label label-warning';
                }
            };
        }
    );