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feat: 增加 14. 第一个元素、18. 获取元组长度、43. 实现 Exclude

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/src/type-challenges/tupleToObject/index.ts
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// 11. 元组转换为对象：https://tsch.js.org/11/zh-CN
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import type { Equal, Expect } from '@type-challenges/utils'
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// 你的代码










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type TupleToObject<T extends readonly PropertyKey[]> = {










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  [K in T[number]]: K










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}










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// 测试用例










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const tuple = ['tesla', 'model 3', 'model X', 'model Y'] as const




×







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const tupleNumber = [1, 2, 3, 4] as const




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const sym1 = Symbol(1)




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const sym2 = Symbol(2)




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const tupleSymbol = [sym1, sym2] as const




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const tupleMix = [1, '2', 3, '4', sym1] as const




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type cases = [










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  Expect<Equal<TupleToObject<typeof tuple>, { 'tesla': 'tesla', 'model 3': 'model 3', 'model X': 'model X', 'model Y': 'model Y' }>>,










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  Expect<Equal<TupleToObject<typeof tupleNumber>, { 1: 1, 2: 2, 3: 3, 4: 4 }>>,










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  Expect<Equal<TupleToObject<typeof tupleSymbol>, { [sym1]: typeof sym1, [sym2]: typeof sym2 }>>,










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  Expect<Equal<TupleToObject<typeof tupleMix>, { 1: 1, '2': '2', 3: 3, '4': '4', [sym1]: typeof sym1 }>>,










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]










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// @ts-expect-error










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type error = TupleToObject<[[1, 2], {}]>
























    

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