devtypes
    Preparing search index...

    Type Alias DeepReadonly<T>

    DeepReadonly: T extends Function
        ? T
        : T extends (infer U)[]
            ? ReadonlyArray<DeepReadonly<U>>
            : T extends object ? { readonly [K in keyof T]: DeepReadonly<T[K]> } : T

    Deep readonly (recursive)

    Type Parameters

    • T
    type User = { id: number; profile: { name: string; address: { city: string; zip: number } } };
    type ReadonlyUser = DeepReadonly<User>;
    // { readonly id: number; readonly profile: { readonly name: string; readonly address: { readonly city: string; readonly zip: number } } }