A spell function checking if a given attribute is an empty string or equals to a NULL value.
<source lang="javascript"> bool is_empty(attr); </source>
Returns true if attr is NULL or is an empty string, otherwise returns false.
<source lang="javascript"> if(is_empty(string1)) {
// Enter an alert message that appears when the if statement is fulfilled zmsg=format(" string1 is required in order to close this ticket"); set_error(1); set_return_data(zmsg); return;
} </source> <source lang="javascript"> string contact_persid; if(!is_empty(contact_persid)) {
// ...
} </source>
Is empty - SDU