Forum Discussion

Regular Contributor

8 years ago

Global variable trouble!

Hello everyone I am having serious trouble with Global vaiebles! In the past, I did use Global variable successfully. Only difference this time is, I have 3 Global variable coming from UnitA to U...

tristaanogre
8 years ago
That's to be expect... you are trying to use B unit code in unit A... which is not allowed because you're not allowed circular references...

What this comes down to, honestly, is that you're going to need to re-engineer some stuff so that you keep your code modularized in specific units so you don't end up with circular references. Unfortunately, that's you're only recourse here... in order to call the code you want to call, you need USEUNIT clauses... but you can't do that because doing so puts you in the situation of having circular references... the only solution is to re-engineer.

shankar_r

Community Hero

8 years ago

There are two ways,

1) Using //USEUNIT in your UnitB and UnitC .

2) Using your global variable prefixed with their unit name Unit.fName

If you are not into any of these 2 ways then you will get undefined

royd
Regular Contributor
8 years ago
Hi Shankar

Good to see you again.

JScriptdoes does not allow the use of circular references see here.

Just tried your second suggestion and got the following error:

Microsoft JScript runtime error.
'AA_Create_Patient' is undefined.

Any idea?

Thanks.

Dave
- tristaanogre
  Esteemed Contributor
  8 years ago
  royd, correct, it does not allow circular references, but you still need to have a //USEUNIT statement at the top of your unit to tell it to include variables and methods from another script unit. Without that, you'll get exactly the result you got. If you have B referencing A and then A referencing B again, that's not allowed. But so long as it's just a single line, shouldn't be a problem.
  
  In other words, your UnitB should look like this:
  
  //USEUNIT AA_Create_Patient; function patientSignOn(){ Log.Message("Patient's Name is: " + AA_Create_Patient.fName); Log.Message("Security code is: " + AA_Create_Patient.securityC); Log.Message("Signup url is: " + AA_Create_Patient.getURL); . . . }
  - royd
    Regular Contributor
    8 years ago
    Hi Robert,
    
    Thanks for your response. Just tried that, added
    //USEUNIT AA_Create_Patient
    to AB_Signup_Patient and got following error:
    
    UnitB code is:
    //USEUNIT AC_3839_Login_English_Toggle_Spanish_Logout_Reload //USEUNIT underscore //USEUNIT AA_Create_Patient function patientSignOn(){ Log.Message("Patient's Name is: " + AA_Create_Patient.fName); Log.Message("Security code is: " + AA_Create_Patient.securityC); Log.Message("Signup url is: " + AA_Create_Patient.getURL); ... }
    
    Dave