Does anyone know what type of object `context values` is in NetSuite Professionals #suitescript

Does anyone know what type of object `context.valu...

scottvonduhn

07/12/2019, 6:24 PM

Does anyone know what type of object

context.values

is in the reduce phase of a Map/Reduce script? It seems to act like an array, and I am able to use it like an array in code, but if I call

Array.isArray(context.values)

util.isArray(context.values)

I get false from both methods. Is it some kind of special Collection object specific to Rhino?

battk

07/12/2019, 6:27 PM

its probably a JavaArray

🧐 1

battk

07/12/2019, 6:29 PM

call Object.prototype.toString to see its class

battk

07/12/2019, 6:29 PM

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString#Using_toString()_to_detect_object_class

scottvonduhn

07/12/2019, 6:29 PM

thanks

scottvonduhn

07/12/2019, 6:36 PM

Yes, it is a JavaArray. Are there any gotchas with just treating it like a plain old JS array? I haven't run into any so far. Rhino exposing Java types through JS script always seems very strange to me. Most of the time I try not to worry about or make use of JS engine-specific implementation features. I would hope Rhino makes the conversion back and forth seamless enough that I can continue to not worry about it.

battk

07/12/2019, 6:39 PM

it was more common in ss1, and generally the worst i saw was confusing error messages

battk

07/12/2019, 6:40 PM

you can probably use Array.slice if you are really worried

scottvonduhn

07/12/2019, 6:45 PM

I think I am okay. Someone else ( a non-NetSuite developer ) made the suggestion that developers should check if an object is an array before using array methods on it. But I can just document that this is a special Object type that Rhino allows us to treat as an array. I think that will satisfy the code reviewer.

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