=====
abort
=====

.. js:function:: abort(message)

**domain**: client 

**language**: javascript

**class** :doc:`AbstractItem </refs/client/abstractitem_api>`

Description
===========

Use **abort** method to throw exception. 

It can be usefull when you need to abort execution of some 'on_before' events.


Example
=======

The following code will throw exception with the text:

execution aborted: invoice_table - a quantity value is required

.. code-block:: js

    function on_before_post(item) {
        if (item.quantity.value === 0) {
            item.abort('a quantity value is required');
        }
    }