The use of Throw( in scripting

Question

I  use Throw() in my programs to stop the execution for that particular part of the program. This still works in JMP 13 but I sometimes get a new window with a JMP Alert.  I can't seem to simulate the problem - It happens in a User Window - the program sees a problem, the program sends a Caption and executes a Throw().  In earlier version I only got the Caption now I sometimes get an Alert window as well.  I thought Throw() just stops execution. I can use text in the Throw("Hello") and it will in this case get a JMP Alert with the text - if executed on its own I get only the text in the log.  I'm not sure what to expect when.  Can anybody help.

Craige_Hales · Accepted Answer

Alert dialog triggered by JSL throw in Interactive mode

When JSL runs from a button script it is running in interactive mode and produces alert dialogs when JMP thinks you should know what happened. If you run a script by submitting it, JSL runs in batch mode and just sends alerts to the log. I think in your case you probably want to use stop() rather than throw("msg").

When you submit this script, it runs in batch mode and brings up a window. When you click a button in the window, the button script runs interactively.

newwindow("x",
buttonbox("throw(err msg)",setscript(print(1);throw("this is an error message");print(2))),
buttonbox("throw",setscript(print(3);throw();print(4))),
buttonbox("stop",setscript(print(5);stop();print(6))),	
)

For each of the buttons, only the first number is printed in the log because the script stops.

hans_deroos · Accepted Answer

Thanks Craige - exactly what I need - the Stop() function.  I can't get it the Sctipt Manual though.

I would expect that the 'throw' button in your example would display an empty Alert like below.  This is what I get in my own program - as you said it is in an interactive environment