Zhentiw - 博客园

2022年10月21日

[Typescript] 62. Medium - Fibonacci Sequence

摘要： Implement a generic Fibonacci<T> that takes a number T and returns its corresponding Fibonacci number. The sequence starts: 1, 1, 2, 3, 5, 8, 13, 21, 阅读全文

posted @ 2022-10-21 18:40 Zhentiw 阅读(14) 评论(0) 推荐(0)

[Typescript] 61. Medium. - Flip

摘要： Implement the type of just-flip-object. Examples: Flip<{ a: "x", b: "y", c: "z" }>; // {x: 'a', y: 'b', z: 'c'} Flip<{ a: 1, b: 2, c: 3 }>; // {1: 'a' 阅读全文

posted @ 2022-10-21 18:34 Zhentiw 阅读(18) 评论(0) 推荐(0)

2022年10月20日

[Typescript] 60. Medium - OmitByType

摘要： From T, pick a set of properties whose type are not assignable to U. For Example type OmitBoolean = OmitByType<{ name: string count: number isReadonly 阅读全文

posted @ 2022-10-20 18:44 Zhentiw 阅读(23) 评论(0) 推荐(0)

[Typescript] 59. Medium - InorderTraversal

摘要： Implement the type version of binary tree inorder traversal. For example: const tree1 = { val: 1, left: null, right: { val: 2, left: { val: 3, left: n 阅读全文

posted @ 2022-10-20 18:41 Zhentiw 阅读(28) 评论(0) 推荐(0)

[Typescript] 58. Medium - BEM style string

摘要： The Block, Element, Modifier methodology (BEM) is a popular naming convention for classes in CSS. For example, the block component would be represente 阅读全文

posted @ 2022-10-20 18:29 Zhentiw 阅读(20) 评论(0) 推荐(0)

[RxJS] catchError

摘要： catchError will complete the observable, so be careful where you put the catchError: import { fromEvent, empty } from 'rxjs'; import { ajax } from 'rx 阅读全文

posted @ 2022-10-20 14:43 Zhentiw 阅读(126) 评论(0) 推荐(0)

[Typescript] Get a TypeScript package ready for release to NPM

摘要： If you're thinking about putting a TypeScript package up to NPM, you should be considering preconstruct. It makes setup EXTREMELY easy and takes many 阅读全文

posted @ 2022-10-20 14:31 Zhentiw 阅读(21) 评论(0) 推荐(0)

[Typescript] Tips: Assign local variables to default generic slots to dry up your code and improve performance

摘要： You can DRY up your generics code MASSIVELY (and improve perf) by assigning local variables to default generic slots. Here, we move some complex 'Extr 阅读全文

posted @ 2022-10-20 14:21 Zhentiw 阅读(21) 评论(0) 推荐(0)

[!Typescript] Tips: dynamic specify the type of arguments to function

摘要： You can use generics to dynamically specify the number, and type, of arguments to functions. Here, we create a sendEvent function which only asks for 阅读全文

posted @ 2022-10-20 03:09 Zhentiw 阅读(38) 评论(0) 推荐(0)

2022年10月19日

[RxJS] mergeMap

摘要： Maps values to a new observable on emission from source, subscribing to and emitting results of inner observables By default mergeMap does not limit t 阅读全文

posted @ 2022-10-19 15:13 Zhentiw 阅读(149) 评论(0) 推荐(0)

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