The isNull
function determines if an object reference does not exist.
Format
{%= isNull(object) %}
Example
The following operation checks if the person’s home address does not exist.
{%= isNull(person.homeAddress) %}
The isNotNull
function determines if an object reference exists.
Format
{%= isNotNull(object) %}
Example
The following operation checks if the person’s home address exists.
{%= isNotNull(person.homeAddress) %}