Expression does not support more than 3 parameters ?

Forum|Forum|5 years ago
November 10, 2020
3 replies
2518 views

Hi,

It seems that the expression can only accept 3 parameters, the 4th and consequent parameters are not recognized.

In the attached screenshot, console.log(thur) print nothing whatever the base type is STRING or BOOLEAN.

And the 4th parameter has a strange border .

Best answer by VladimirRosu_116627

I've got the same ThingWorx version (PostgreSQL provider) in a VM, and the image box around the 4th+ item is reproduceable in Firefox as well, looks like an UI issue mostly.

The console.log works fine for those parameters though.

On the boolean side I could not reproduce though. When a Checkbox's state is bound to a boolean type input parameter, the typeof returns boolean - as seen in the console below.

O

odukiya

16-Pearl

Hello @seanccc

Yeah it seems as expression is used to evaluate js expressions it might take only 3 parameters. Though there is nowhere it is mentioned so let me collect some more information regarding it and I will get back to you. For your reference you can refer following link

http://support.ptc.com/help/thingworx_hc/thingworx_8_hc/en/index.html#page/ThingWorx/Help/Mashup_Builder/Functions/Expression.html

Thanks

O

odukiya

16-Pearl

Hello @seanccc

I tried adding 4 parameters to expression and print the values over console and was able to do so.

Might be you are missing something . Can you provide more detail of your use case?

Thanks

Om Dukiya

S

seanccc

Author

17-Peridot

@odukiya ,

I tried again today and yes, console.log the 4th parameter works, I have no idea why it didn't work.

But it still has some problem for data type "BOOLEAN" , the passed value is STRING "true" instead of true for the 4th parameter although set the data type to BOOLEAN. Set the data type to "STRING" can be a workaround .

Regards,

Sean