I am interested in deleting an element from Firebase using JavaScript

I'm struggling to grasp the concept of deleting an item from my Firebase database. I have successfully created a function (saveEmployee) to add items, but removing them is where I hit a roadblock.

HTML

<tbody ng-repeat="employee in employees"> 
            <tr>
                <td>{{employee.employeeName}}</td>
                <td>{{employee.employeeAge}}</td>
                <td><a class="btn btn-danger" ng-click="removeEmployee(employee.employeeName)" >Delete</a></td>
            </tr>
        </tbody>

JS

$scope.removeEmployee = function(employeeName) {
        console.log(employeeName);
        $scope.myData.child(employeeName).remove();
    };

Answer №1

To remove an employee from the system, you can use the Firebase.set() method and pass in null as the parameter.

$scope.deleteEmployee = function(employeeId) {
   var empRef = new Firebase('https://yourfirebaseurl.firebaseio.com/employees/' + employeeId);
   empRef.set(null);
};

You can also add a callback handler to handle any errors:

$scope.deleteEmployee = function(employeeId) {
   var empRef = new Firebase('https://yourfirebaseurl.firebaseio.com/employees/' + employeeId);
   empRef.set(null, function(error) {
       if (error) {
           console.log(error);
       } else {
           console.log('Employee successfully deleted.');
       }
   });
};

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