Zhentiw - 博客园

2022年10月9日

[Typescript] Tips: Throw detailed error messages for type checks

摘要： You can throw detailed error messages for type checks. Here, I move a runtime check in a function to the type level, meaning you get a detailed error 阅读全文

posted @ 2022-10-09 20:41 Zhentiw 阅读(31) 评论(0) 推荐(0)

[RxJS] Ignore values during windows using throttleTime

摘要： By default, throttleTime(x), after first event emit, then wait for x amount of time, then emit another latest value. All the values between the waitin 阅读全文

posted @ 2022-10-09 20:20 Zhentiw 阅读(26) 评论(0) 推荐(0)

[Algorithm] DP - Min Number of Jumps

摘要： You're given a non-empty array of positive integers where each integer represents the maximum number of steps you can take forward in the array. For e 阅读全文

posted @ 2022-10-09 20:07 Zhentiw 阅读(35) 评论(0) 推荐(0)

2022年10月7日

[Typescript] 45. Medium - MinusOne (Solution to solve max number of iteration by tail call)

摘要： Just for fun... Given a number (always positive) as a type. Your type should return the number decreased by one. For example: type Zero = MinusOne<1> 阅读全文

posted @ 2022-10-07 22:57 Zhentiw 阅读(68) 评论(0) 推荐(0)

[Typescript + React] Tip: Use generics in React to make dynamic and flexible components

摘要： You can use generics in React to make incredibly dynamic, flexible components. Here, I make a Table component with a generic 'items' type. interface T 阅读全文

posted @ 2022-10-07 18:13 Zhentiw 阅读(41) 评论(0) 推荐(0)

[Typescript] 44. Medium - Drop char

摘要： Drop a specified char from a string. For example: type Butterfly = DropChar<' b u t t e r f l y ! ', ' '> // 'butterfly!' /* _____________ Your Code H 阅读全文

posted @ 2022-10-07 01:08 Zhentiw 阅读(23) 评论(0) 推荐(0)

2022年10月6日

[Typescript] 43. Medium - Percentage Parser

摘要： Implement PercentageParser. According to the /^(\+|\-)?(\d*)?(\%)?$/ regularity to match T and get three matches. The structure should be: [plus or mi 阅读全文

posted @ 2022-10-06 02:11 Zhentiw 阅读(26) 评论(0) 推荐(0)

2022年10月5日

[RxJS] Defer task execution with the asapScheduler (microtask)

摘要： asapScheduleris similar to queueMicroTask()and Promise. AsapScheduler lets you schedule work on the microtask queue, executing task as soon as possibl 阅读全文

posted @ 2022-10-05 02:27 Zhentiw 阅读(30) 评论(0) 推荐(0)

[Typescript] 42. Medium - Remove Index Signature

摘要： Implement RemoveIndexSignature<T> , exclude the index signature from object types. For example: type Foo = { [key: string]: any; foo(): void; } type A 阅读全文

posted @ 2022-10-05 01:17 Zhentiw 阅读(74) 评论(0) 推荐(0)

2022年10月4日

[Typescript] Tips: Create your own 'objectKeys' function using generics and the 'keyof' operator

摘要： The looseness of Object.keys can be a real pain point when using TypeScript. Luckily, it's pretty simple to create a tighter version using generics an 阅读全文

posted @ 2022-10-04 14:16 Zhentiw 阅读(34) 评论(0) 推荐(0)

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