Zhentiw - 博客园

2022年11月16日

[Typescript]106. Medium - OnPropChangedMethods

摘要： type OnPropChangedMethods<T> = { [Key in keyof T & string as `${Key}Changed`]: (cb: (newValue: T[Key]) => void) => void } declare function makeWatched 阅读全文

posted @ 2022-11-16 15:02 Zhentiw 阅读(37) 评论(0) 推荐(0)

[Typescript] 105. Medium - Placeholder

摘要： type Placeholder<T extends string> = T extends `${string}{${infer P}}${infer REST}` ? P | Placeholder<REST> : never; declare function format<S extends 阅读全文

posted @ 2022-11-16 14:48 Zhentiw 阅读(50) 评论(0) 推荐(0)

[Typescript] 103. Hard - Tuple Filter

摘要： Implement a type FilterOut<T, F> that filters out items of the given type F from the tuple T. For example, type Filtered = FilterOut<[1, 2, null, 3], 阅读全文

posted @ 2022-11-16 02:19 Zhentiw 阅读(23) 评论(0) 推荐(0)

2022年11月15日

[Typescript] 102. Hard - String to Number

摘要： Convert a string literal to a number, which behaves like Number.parseInt. /* _____________ Your Code Here _____________ */ type ToNumber<S extends str 阅读全文

posted @ 2022-11-15 00:43 Zhentiw 阅读(35) 评论(0) 推荐(0)

[Typescript] 101. Hard - Typed Get

摘要： The get function in lodash is a quite convenient helper for accessing nested values in JavaScript. However, when we come to TypeScript, using function 阅读全文

posted @ 2022-11-15 00:34 Zhentiw 阅读(41) 评论(0) 推荐(0)

2022年11月14日

[Typescript] 100. Hard - IsAny

摘要： Sometimes it's useful to detect if you have a value with any type. This is especially helpful while working with third-party Typescript modules, which 阅读全文

posted @ 2022-11-14 01:01 Zhentiw 阅读(79) 评论(0) 推荐(0)

2022年11月12日

[Typescript] 99. Hard - CamelCase

摘要： Implement CamelCase<T> which converts snake_case string to camelCase. For example type camelCase1 = CamelCase<'hello_world_with_types'> // expected to 阅读全文

posted @ 2022-11-12 17:28 Zhentiw 阅读(40) 评论(0) 推荐(0)

[Typescript] 98. Medium - Append to object

摘要： Implement a type that adds a new field to the interface. The type takes the three arguments. The output should be an object with the new field. For ex 阅读全文

posted @ 2022-11-12 17:02 Zhentiw 阅读(24) 评论(0) 推荐(0)

2022年11月11日

[Typescript] Zod in actions

摘要： import { z } from "zod"; export enum SUBTYPE { ABORT = "abort", START = "start", UPLOAD = "upload", LOADING = "loading", } export const TYPE = "print" 阅读全文

posted @ 2022-11-11 20:42 Zhentiw 阅读(53) 评论(0) 推荐(0)

[Typescript] 97. Hard - Capitalize Words

摘要： Implement CapitalizeWords<T> which converts the first letter of each word of a string to uppercase and leaves the rest as-is. For example type capital 阅读全文

posted @ 2022-11-11 15:51 Zhentiw 阅读(45) 评论(0) 推荐(0)

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