Select all checkbox get selected by default when i dont have records

I am getting problem by getting my select all button checked when there are no records.

Below is my code:

<input type="checkbox" ng-model="selectAll" ng-model-options="{getterSetter: true}"/>

 var getAllSelected= function () {
        var selectedItems = $scope.items.filter(function (item) {
            return item.selected;
        });
        return selectedItems.length === $scope.items.length;
    }

    var setAllSelected = function (value) {
        angular.forEach($scope.items, function (item) {
            item.selected = value;
        });
    }

    $scope.selectAll = function (value) {
        if (value !== undefined) {
            return setAllSelected(value);
        } else {
            return getAllSelected();
        }
    }

So problem is below condition is getting true when i dont have records in my $scope.items :

return selectedItems.length === $scope.items.length;

Can anybody please help me to solve this problem?

Source: AngularJS

from Angular Questions https://angularquestions.com/2017/10/05/select-all-checkbox-get-selected-by-default-when-i-dont-have-records/
via @lzomedia #developer #freelance #web #lzomedia.com