Zhentiw - 博客园

2022年8月31日

[Typescript Challenges] 3. Easy - Tuple to Object

摘要： For example: const tuple = ['tesla', 'model 3', 'model X', 'model Y'] as const type result = TupleToObject<typeof tuple> // expected { tesla: 'tesla', 阅读全文

posted @ 2022-08-31 15:51 Zhentiw 阅读(60) 评论(0) 推荐(0)

[Typescript Challenges] 2. Easy -- readonly

摘要： For example: interface Todo { title: string description: string } const todo: MyReadonly<Todo> = { title: "Hey", description: "foobar" } todo.title = 阅读全文

posted @ 2022-08-31 15:26 Zhentiw 阅读(56) 评论(0) 推荐(0)

[Typescript Challenges] 1. Easy - Pick

摘要： For example: interface Todo { title: string description: string completed: boolean } type TodoPreview = MyPick<Todo, 'title' | 'completed'> const todo 阅读全文

posted @ 2022-08-31 15:23 Zhentiw 阅读(64) 评论(0) 推荐(0)

[Pattern] Flyweight

摘要： Reuse existing instances when working with identical objects The flyweight pattern is useful when you're creating a huge number of objects, which coul 阅读全文

posted @ 2022-08-31 14:59 Zhentiw 阅读(37) 评论(0) 推荐(0)

2022年8月30日

[Algorithm] Three Number Sort

摘要： You're given an array of integers and another array of three distinct integers. The first array is guaranteed to only contain integers that are in the 阅读全文

posted @ 2022-08-30 20:55 Zhentiw 阅读(52) 评论(0) 推荐(0)

[Typescript] Step 7. Tests for Types

摘要： Step 7: Tests for Types The assertion type code need to be tested just as the normal code. export function isITeam(arg: any): arg is ITeam { /** * { i 阅读全文

posted @ 2022-08-30 18:09 Zhentiw 阅读(75) 评论(0) 推荐(0)

[Typescript] Convert a js project to typescript

摘要： Step1 & 2 for converting a js app to ts Step 3. Turn on "noImplicitAny" and even more strict mode Step 4. ESLint for Typescript Step5. Local types ove 阅读全文

posted @ 2022-08-30 18:09 Zhentiw 阅读(41) 评论(0) 推荐(0)

[Typescript] Step6: Types at Runtime

摘要： Step 5: Types at Runtime This problem often happens when APi return the data. let cachedAllTeamsList: Promise<ITeam[]>; export async function getAllTe 阅读全文

posted @ 2022-08-30 15:32 Zhentiw 阅读(52) 评论(0) 推荐(0)

[Typescript] Step5. Local types override

摘要： Step5. Local types override You can find many @types package along with the library you use. But the problem is that those @types might contain bugs b 阅读全文

posted @ 2022-08-30 15:02 Zhentiw 阅读(41) 评论(0) 推荐(0)

2022年8月29日

[Typescript] Step 4. ESLint for Typescript

摘要： Step 4: ESLint We need to install ESLint tools for Typescript. yarn add -D @typescript-eslint/eslint-plugin @typescript-eslint/parser .eslintrc file: 阅读全文

posted @ 2022-08-29 19:27 Zhentiw 阅读(418) 评论(0) 推荐(0)

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