arktype•2w ago

string.numeric.parse accepts empty strings and returns a NaN

console.log(type("string.numeric.parse")(""));

console.log(type("string.numeric.parse")(""));

this does not fail as I would expect - it returns a NaN. Is that the expected behavior? What is a nice way to achieve the behavior I'm looking for?

1 Reply

CodyC•2w ago

That feels like a bug. Docs say string.numeric morphs a "well-formed numeric string" and "" doesn't seem well-formed to me. 😅 What version are you on? I'm on 2.1 and it works as expected for me.

type("string.numeric.parse")("")

type("string.numeric.parse")("")

returns an error.

> type("string.numeric.parse")("").summary
'must be a well-formed numeric string (was "")'

> type("string.numeric.parse")("").summary
'must be a well-formed numeric string (was "")'

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string.numeric.parse accepts empty strings and returns a NaN

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