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For example we have a search input: const input$ = fromEvent(document.getElementById("#input"), "input"); input$ .pipe( debounceTime(200), pluck("targ 阅读全文
posted @ 2022-10-14 20:56
Zhentiw
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const { TestScheduler } = require("rxjs/testing"); const { map, take, delay, mapTo, catchError } = require("rxjs/operators"); const { concat, from, of 阅读全文
posted @ 2022-10-14 20:24
Zhentiw
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describe("Marble testing in Rxjs", () => { let testScheduler; beforeEach(() => { testScheduler = new TestScheduler((actual, expected) => { expect(actu 阅读全文
posted @ 2022-10-14 20:20
Zhentiw
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const { TestScheduler } = require("rxjs/testing"); const { map, take, delay, mapTo, catchError } = require("rxjs/operators"); const { concat, from, of 阅读全文
posted @ 2022-10-14 19:35
Zhentiw
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Implement a generic RequiredByKeys<T, K> which takes two type argument T and K. K specify the set of properties of T that should set to be required. W 阅读全文
posted @ 2022-10-14 19:14
Zhentiw
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Implement a generic PartialByKeys<T, K> which takes two type argument T and K. K specify the set of properties of T that should set to be optional. Wh 阅读全文
posted @ 2022-10-14 19:04
Zhentiw
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https://developer.mozilla.org/en-US/docs/Web/API/Clipboard_API const app = document.getElementById('app'); app.innerHTML = ` <h1>JavaScript HTML5 APIs 阅读全文
posted @ 2022-10-14 16:03
Zhentiw
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Implement EndsWith<T, U> which takes two exact string types and returns whether T ends with U For example: type a = EndsWith<'abc', 'bc'> // expected 阅读全文
posted @ 2022-10-14 01:40
Zhentiw
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Implement StartsWith<T, U> which takes two exact string types and returns whether T starts with U For example type a = StartsWith<'abc', 'ac'> // expe 阅读全文
posted @ 2022-10-14 01:38
Zhentiw
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From T, pick a set of properties whose type are assignable to U. For Example type OnlyBoolean = PickByType<{ name: string count: number isReadonly: bo 阅读全文
posted @ 2022-10-14 01:31
Zhentiw
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