topic Variables declared in QVS and Included in load script not being included in application. in App Development

Variables declared in QVS and Included in load script not being included in application.

stascher — Tue, 01 Mar 2022 15:49:16 GMT

hello,

I have a Qlik Sense application that has two Include directives similar to:

$(Include='lib://config1.qvs');

$(Include='lib://config2.qvs');

In each config file I've declared some variables:

config1.qvs: Let vDate1=;

config2.qvs: Let vDate2=;

When the application reloads, I can see in the log file that both qvs files are being included and the variable declarations are executed. However, if I try to use vDate2 in any expression, it doesn't exist. It doesn't even show up in the Variables drop-down of the expression editor. Yet vDate1 is there.

Any idea why this behavior?

Thanks,

Steven

Re: Variables declared in QVS and Included in load script not being included in application.

marcus_sommer — Wed, 02 Mar 2022 12:29:37 GMT

Let vDate2=; assigned NULL against the variable and this means the variable will be deleted. So if you really used this or maybe another invalid expression like: 'a' + null() the variable disappeared. By vDate1 it may be different or this variable is created another time.

I think a look within the document-log should easily show where these variables were created and called and maybe deleted again.

- Marcus

Re: Variables declared in QVS and Included in load script not being included in application.

stascher — Wed, 02 Mar 2022 13:04:29 GMT

I didn't know that an expression such as vDate1=; actually deleted the variable.
So my next question is, does that mean an expression such as vDate1=null(); will also delete the variable?
Regards,
Steven

Re: Variables declared in QVS and Included in load script not being included in application.

marcus_sommer — Wed, 02 Mar 2022 13:10:33 GMT

Yes, that's right: let var = null(); removed the variable. In View variables which comes at least one time within the UI will keep their entry there within the variable-overview and must be manually deleted there, too (of course only those which shouldn't be there). By Sense I don't know if it's behaved similar.

- Marcus