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I already tried Array.findIndex but it doesn't work in SuiteScript 2.x :confused:

lodash. though  often finding an index isn't the best solution to a problem - it often suggests working at to low level.

Yeah I'm trying to update a 1.0 script that was all hard coded item mappings

```      const mapIndex = itemMapResult.map(obj =&gt; obj.itemId).indexOf(item);

      log.debug("Mapped Item", JSON.stringify(itemMap[mapIndex]));```

typoed a little there but I think you get the idea

I'm refactoring it as I go along because it's ridiculously complex the way the original author hard coded everything

As I make sense of each section I simplify it

FWIW I'd recommend against using `2.x` for your scripts, particularly if you are writing any 2.1 and especially in this current case where `2.x` can mean two completely different versions of SuiteScript in different accounts depending on the preference setting.