Ionic double filter on list (leaflet)

controller.js

angular.module('doublefilter.example', []).controller('doubleFilterCtrl', function ($scope, $cordovaGeolocation) {
  $scope.geom=new L.Point(12, 12);
  $scope.items=[{"lat":10,"lng":5,"property1":"a"},{"lat":0,"lng":6,"property1":"a"},{"lat":14,"lng":5,"property1":"b"}];
  $scope.filterValue="a";
}).filter("propertyFilter", function () {
    return function (items, propertyValue) {
        var filtered = [];
        for (var i = 0; i < items.length; i++) {
            if (items[i].hasOwnProperty("property1") && items[i].property1 == propertyValue) {
                filtered.push(items[i]);
            }
        }
        return filtered;
    }


}).filter("distFilter", function () {
    return function (items, g, limitato) {
        if (limitato) {
            var maxRange = 4;
            var filtered = [];
            if (g) {
                var type = g.layerType;
                var layer = g.layer;
                var lat = null;
                var lng = null;
                if (type == "marker") {
                    lat = layer.getLatLng().lat;
                    lng = layer.getLatLng().lng;
                } else if (type == "polygon") {
                    lat = layer.getBounds().getCenter().lat;
                    lng = layer.getBounds().getCenter().lng;
                }
                var r = maxRange * 1000;
                var center = L.latLng(lat, lng);
                if (lat && lng) {
                    for (var i = 0; i < items.length; i++) {
                        var item = items[i];
                        if (item.hasOwnProperty("lat") && item.hasOwnProperty("lon") && center.distanceTo(L.latLng(item.lat, item.lon)) < r) {
                            filtered.push(item);
                        };
                    }
                }
            }
            return filtered;
        } else {
            return items;
        }
    }
});

list.html

<ion-view>
   
    <ion-content has-header="true">
        <ion-toggle ng-model="limitato" ng-checked="limitato">
            Limita ad un raggio di 4 km
        </ion-toggle>
        <ion-item class="item-checkbox misure" style="border-style:none;text-align:center" ng-repeat="item in filteredItems = (items | propertyFilter:filterValue | distFilter:geom:limitato)">
            <label class="checkbox">
                <input type="checkbox" ng-model="item.checked">
            </label>
            property: {{item.property}}
        </ion-item>

        <div ng-hide="filteredItems.length">Nessuna valore nelle vicinanze
            <br>
        </div>
    </ion-content>
</ion-view>