# Loops skip result if undefined
**URL:** https://forums.losant.com/t/loops-skip-result-if-undefined/5311
**Category:** Help
**Tags:** workflow, loop-node
**Created:** [October 24, 2023, 10:12pm UTC](https://forums.losant.com/t/loops-skip-result-if-undefined/5311 "2023-10-24T22:12:32Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Wesley\_Manning](https://forums.losant.com/u/Wesley_Manning)
#### Post date: [October 24, 2023, 10:12pm UTC](https://forums.losant.com/t/loops-skip-result-if-undefined/5311/1 "2023-10-24T22:12:32Z")
I have a parallel loop where I’m using the “Iteration Result Path” to add to the loop array.
Is there a way to tell an iteration not to store a value to the final loop array? Some of my iterations I don’t want to store anything that iteration.
I thought passing null might prevent anything being added that iteration but no, I’m just getting a lot of “undefined” in the final array as null is being passed to the return node.
In my case I don’t think I need the performance of the parallel loop so I will try the serial version.
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### Author:  [@Brandon\_Cannaday](https://forums.losant.com/u/Brandon_Cannaday)
#### Post date: [October 24, 2023, 10:22pm UTC](https://forums.losant.com/t/loops-skip-result-if-undefined/5311/2 "2023-10-24T22:22:57Z")
One solution is to use the Array Node’s [Compact](https://docs.losant.com/workflows/logic/array/#compact) operation after the loop. Compact removes all falsy items from the array, which includes `null` and `undefined`.
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### Author:  [@Wesley\_Manning](https://forums.losant.com/u/Wesley_Manning)
#### Post date: [October 24, 2023, 10:30pm UTC](https://forums.losant.com/t/loops-skip-result-if-undefined/5311/3 "2023-10-24T22:30:42Z")
Thanks will do that. I realize after it’s not limited to parallel loops.