My mapreduce script code file starts (after the necessary NApiVersion and NScriptType tags) with:

define(["N/runtime", "N/search", "N/dataset", "N/record"], function(runtime, search, dataset, record){

When executing the line

const datasetObj = dataset.loadDataset({id: datasetId});

I get this error:

TypeError: dataset.loadDataset is not a function

But the NetSuite Help documentation shows this: dataset.loadDataset(options) Method Description Loads an existing dataset. Returns dataset.Dataset Supported Script Types Server scripts For more information, see SuiteScript 2.x Script Types. Governance 10 units Module N/dataset Module Sibling Module Members N/dataset Module Members Since 2020.2 Parameters Note The

options

parameter is a JavaScript object. Parameter Type Required / Optional Description

options.id

string required The ID of the dataset to load. So why is a function the docs say is there, not there? I'm going to use query.load() instead. That doesn't throw errors and seems to return all the dataset results into the map function

I would guess you're overwriting the dataset module with a variable assignment

no, I checked, the "dataset" keyword is not being assigned to anything, only dereferenced. Good idea, though.

its apparently mis-named in the docs it appears to be just "load"

try this const datasetObj = dataset.load({ id: datasetId });

Thank you everyone. I'll keep that in mind for next time. I wondered if that was the case (misnamed in the documentation), but I ended up going with query.load() and it worked just right.