arktype•16mo ago

Optional property with const string array

Hello, the following

const x = ["a", "b", "c"] as const;
const myType = type({
  "optional?": type("===", ...x),
});

const x = ["a", "b", "c"] as const;
const myType = type({
  "optional?": type("===", ...x),
});

const x = ["a", "b", "c"] as const;
const myType = type({
  "optional?": type("===", ...x),
});

const x = ["a", "b", "c"] as const;
const myType = type({
  "optional?": type("===", ...x),
});

is giving a

Only required keys may specify default values

Only required keys may specify default values

Only required keys may specify default values

Only required keys may specify default values

error. It's not really clear to me why - I assume the

===

===

===

=== operator is doing more than what I think.

Is there a way to have an optional property be one of a string array in arktype? Or is what I'm after effectively indexed access expressions? Thanks

GitHub

Issues · arktypeio/arktype

TypeScript's 1:1 validator, optimized from editor to runtime - Issues · arktypeio/arktype

Optional property with const string array

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