11 lines
341 B
TypeScript
11 lines
341 B
TypeScript
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export type Writable<T> = { -readonly [P in keyof T]: T[P] }
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export type WriteableArray<T> = T extends readonly any[] ? Writable<T> : T
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export type IfNever<T, Y = true, N = false> = [T] extends [never] ? Y : N
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export type IfUnknown<T, Y, N> = [unknown] extends [T] ? Y : N
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export type UnknowToNever<T> = IfUnknown<T, never, T>
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export {}
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