8000 Object.freeze(["a","b"]) is not a valid z.enum parameter · Issue #4307 · colinhacks/zod · GitHub
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Object.freeze(["a","b"]) is not a valid z.enum parameter #4307

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AlvesJorge opened this issue May 2, 2025 · 1 comment
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Object.freeze(["a","b"]) is not a valid z.enum parameter #4307

AlvesJorge opened this issue May 2, 2025 · 1 comment

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@AlvesJorge
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AlvesJorge commented May 2, 2025 •
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zod version: 3.24.3
Sandbox reproduction: https://codesandbox.io/p/sandbox/866jqq

as const works but freezing the object fails with No overload matches this call.
Is this expected behavior? If so why?
@colinhacks
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Object.freeze() does not indicate to TypeScript that it should treat the value as a const. It returns readonly string[] which means z.enum() isn't able to infer the individual enum elements. Try Object.freeze(["a","b"] as const) if you want to freeze, but you'll definitely need as const.

@colinhacks colinhacks reopened this May 3, 2025
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