Question

如何为间隔的每次迭代设置randomIntervals的值？

import {random} from 'lodash'
import {interval, timer} from 'rxjs';
import {takeUntil} from 'rxjs/operators';

const timer$ = timer(5000);
const randomInterval = random(100, 1000);
const source = interval(randomInterval)
  .pipe(
    takeUntil(timer$)
  );
source.subscribe(console.log)

Answer 1

那呢？零间隔，它会随机延迟返回项目。

const { interval, of } = rxjs;
const { concatMap, delay } = rxjs.operators;

interval(0).pipe(
  concatMap(i => of(i).pipe(delay(Math.random() * 5000)))
).subscribe(val => { console.log(val); });

<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.4.0/rxjs.umd.min.js"></script>

Answer 2

我认为您不能指定随机间隔，但可以使用超时

const { BehaviorSubject } = rxjs;

const random$ = new BehaviorSubject(1);

random$.subscribe(val => { console.log(val); });

random();

function random() {
  random$.next(random$.getValue() + 1);
  setTimeout(random, Math.random() * 5000);
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.4.0/rxjs.umd.min.js"></script>

或者有这个答案

RXJS: How can I generate a stream of numbers at random intervals (within a specified range)?

在rxjs6中生成随机间隔的值流？

2 个答案: