No prob, I'm glad I could help.

Well, in your function signature you are expecting a single array argument, so no wonder things aren't working the way they should. Calling toTable([["o"]], true, true) in your case gives:

data == ["o"]
header == false
index == false

calling toTable([["lorem", "ipsum"], ["dolor", "sit amet"]], true, true):

data == ["lorem",  "ipsum"]
header == ["dolor", "sit amet"]
index == false

You need to get rid of the square brackets in signature if you want this code to work.

Not a kata issue, yes. @jonnybolt: use the "question" flag, for this kind of things. The error comes from your code.

It seems like you are trying to use map on a non-array type, deducting from the fact that this exception raises inside a call to rowData.map. There is no scenario in which there are other arrays inside a single row of the table. To be perfectly sure, I would need to see your code.

What error do you get?

You have to complete a kata, and then you'll be able to translate it to other languages.

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