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Ts体操--unshift #432

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zhuba-Ahhh opened this issue Jan 29, 2023 · 0 comments

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zhuba-Ahhh commented Jan 29, 2023

实现类型版本的 Array.unshift

type Unshift<T extends unknown[], U> = [U, ...T];

type Result = Unshift<[1, 2], 0> // [0, 1, 2];

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