Current.xxx returned string "null" in business rule

[PhoenixMing0912]

Hi all,

I am using current.xxx or current.getValue("xxx") in business rule for getting a reference field.

The reference field was set to empty, however, I got a string "null" so that I cannot use some function to check if the field was empty, because a string "null" is also "has value".

How to check a reference field is empty in the business rule?

Regards,
Ming

[Mahesh Kumar3]

Did you try gs.nil(current.xxx)

[Mahesh Kumar3]

Refer this URL for gs.nil() documentation

https://developer.servicenow.com/dev.do#!/reference/api/quebec/server/no-namespace/c_GlideSystemScop...

[PhoenixMing0912]

The problem here is the string is not an empty string, the value is "null" (not the keyword null).

[Mahesh Kumar3]

Then check like this:

if((!gs.nil(current.xxx)) && (current.xxx != "null")){

// write your logic

}