Stop the loop if a value is found

RE: Stop the loop if a value is found

Mike Schmitt — Tue, 22 Oct 2024 14:03:21 GMT

thanks for confirming!

RE: Stop the loop if a value is found

Sharmila Nagaraj — Tue, 22 Oct 2024 07:02:26 GMT

Thanks Mike Schmitt for your suggestion. It worked.

Stefan Helzle Soma thanks for your time.

RE: Stop the loop if a value is found

Mike Schmitt — Mon, 21 Oct 2024 13:59:12 GMT

This could potentially be one of the few times that it's helpful to call an expression rule recursively.

Pattern: rule!RULE_myFunction(list of integers)

if(
(list index 1 meets condition),
[Return Value],
rule!RULE_myFunction(ldrop(list of integers, 1)) /* pass in the same array, but with the first element removed */
)

RE: Stop the loop if a value is found

Soma — Mon, 21 Oct 2024 13:27:52 GMT

There is no break concept in Appian.

But using reduce, call the service for list of integers. For every iteration append the desired output to a list and check if the list contains your desired output. If the list contains the output just return null instead of calling the service.

RE: Stop the loop if a value is found

Stefan Helzle — Mon, 21 Oct 2024 10:30:38 GMT

In Appian there is only a foreach(). And this cannot be interrupted.

But using the reduce() function, while still iterating on all list items, you can decide whether to call your service based on previous results.

https://appian.rocks/2022/08/29/complex-algorithms-in-appian/

RE: Stop the loop if a value is found

Sharmila Nagaraj — Mon, 21 Oct 2024 10:16:24 GMT

This needs to be calculated in an expression rule on load.