Javascript 在这个属性（ng repeat）中，当我滚动页面结束时，变量是否重叠？

我想将限制和偏移值从客户端（angularjs）发送到nodejs.so 我尝试使用静态值

我的html代码：

 <div class="prprt-list-ctr row" id="viewpage">
        <div class="hmpal-prprt-wdgt clearfix"  ng-repeat="project in properties"  scroll-trigger="loadMoreRecords()">
            <div class="hmpal-prprt-img">
</div>
</div>
</div>

sidemenu.directive('scrollTrigger', function() {
    return {
        restrict: "A",
        link: function(scope, element, attrs) {
             angular.element(document).bind('scroll', function() {
                if (jQuery(document).height() <= jQuery(window).scrollTop() +jQuery(window).height()) {
                    scope.$apply(attrs.scrollTrigger);
                }

            });
        }
    };
});

  sidemenu.controller('buildersCtrl', ['$scope', '$rootScope', '$location', '$http', 'allServices','$document','PropertyDetails','$routeParams','$window','typeServices', function (a, b, c, d, e,f,h,r,w,t) {


     var paging={start:0,rows:15}
    e.projectListing(r,paging).then(function (result) {
        a.properties = result.data.items;
        b.closeid = r.id;

    }, function (error) {

    });

    a.loadMoreRecords = function() {
alert("sss");
        var offset=paging.start+paging.rows;
       paging={start:offset,rows:15};
        e.projectListing(r,paging).then(function (result) {
            console.log(JSON.stringify(result));
            a.properties = result.data.items;
            b.closeid = r.id;
         }, function (error) {

        });
}
    }})