Cast empty string in place for literal as default value

Hi, I'm trying to use an array of string literals for a select field using Superforms. However, I would like to have the default value be an empty string, so that the default select field is not selected.

I've tried the following, but this doesn't seem to work

const RETURN_TYPES = ['Exit'] as const;
type ReturnType = typeof RETURN_TYPES[number];
export const formReturnSchema = type({
    returnType: type.enumerated(...RETURN_TYPES).default('' as type.cast<ReturnType>),
});

const RETURN_TYPES = ['Exit'] as const;
type ReturnType = typeof RETURN_TYPES[number];
export const formReturnSchema = type({
    returnType: type.enumerated(...RETURN_TYPES).default('' as type.cast<ReturnType>),
});

This gives me a runtime error saying Default must be 'Exit'

arktype•6mo ago•

2 replies

kyoumei

Cast empty string in place for literal as default value

const RETURN_TYPES = ['Exit'] as const;
type ReturnType = typeof RETURN_TYPES[number];
export const formReturnSchema = type({
    returnType: type.enumerated(...RETURN_TYPES).default('' as type.cast<ReturnType>),
});

const RETURN_TYPES = ['Exit'] as const;
type ReturnType = typeof RETURN_TYPES[number];
export const formReturnSchema = type({
    returnType: type.enumerated(...RETURN_TYPES).default('' as type.cast<ReturnType>),
});

This gives me a runtime error saying Default must be 'Exit'

Cast empty string in place for literal as default value

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