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Get the middle element of the array by implementing a GetMiddleElement method, represented by an array If the length of the array is odd, return the m 阅读全文
posted @ 2022-11-01 16:04
Zhentiw
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Given an array of unique elements, return all possible subsequences. A subsequence is a sequence that can be derived from an array by deleting some or 阅读全文
posted @ 2022-10-31 14:59
Zhentiw
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Given an array of strings, do Permutation & Combination. It's also useful for the prop types like video controlsList // expected to be `"foo" | "bar" 阅读全文
posted @ 2022-10-31 14:44
Zhentiw
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https://github.com/kentcdodds/react-testing-library-course/commit/1148e920b8d055d9ca9ef1c372e233d2e950ff1f User-event: https://testing-library.com/doc 阅读全文
posted @ 2022-10-30 21:06
Zhentiw
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Zod Example: number: import { expect, it } from "vitest"; import { z } from "zod"; const numberParser = z.number(); export const toString = (num: unkn 阅读全文
posted @ 2022-10-30 17:40
Zhentiw
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Sometimes we want to limit the range of numbers... For examples. type result = NumberRange<2 , 9> // | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 /* _____________ 阅读全文
posted @ 2022-10-30 17:05
Zhentiw
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Construct a tuple with a given length. For example type result = ConstructTuple<2> // expect to be [unknown, unkonwn] /* _____________ Your Code Here 阅读全文
posted @ 2022-10-30 16:39
Zhentiw
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Implement MapTypes<T, R> which will transform types in object T to different types defined by type R which has the following structure type StringToNu 阅读全文
posted @ 2022-10-29 16:32
Zhentiw
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Implement the type version of Lodash.uniq, Unique takes an Array T, returns the Array T without repeated values. type Res = Unique<[1, 1, 2, 2, 3, 3]> 阅读全文
posted @ 2022-10-29 16:10
Zhentiw
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Implement the built-in Parameters generic without using it. For example: const foo = (arg1: string, arg2: number): void => {} type FunctionParamsType 阅读全文
posted @ 2022-10-29 03:16
Zhentiw
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