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riivanov/deep-read-only

Created February 7, 2023 22:51
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Recursive Type Example
Raw
deep-read-only
type DeepReadonlyObject<T> = { readonly [K in keyof T]: DeepReadonly<T[K]> };
type DeepReadonly<T> = T extends (infer E)[] ?
ReadonlyArray<ReadonlyArray<DeepReadonlyObject<E>>> :
T extends object ? DeepReadonlyObject<T> :
T;
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