15 lines
479 B
TypeScript
15 lines
479 B
TypeScript
export type Overwrite<T, U> = {
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[K in keyof (T & U)]: K extends keyof U ? U[K]
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: K extends keyof T ? T[K]
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: never;
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};
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export type AllMerged<Objects extends any[]> = Objects extends
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[infer T, infer U, ...infer Rest] ? AllMerged<[Overwrite<T, U>, ...Rest]>
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: Objects extends [infer T, ...infer Rest] ? T
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: Objects extends (infer Rest)[] ? Rest
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: never;
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export const merge = <T extends any[]>(objects: T): AllMerged<T> =>
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Object.assign(Object.create(null), ...objects);
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