關於如何使用rxjs

import { interval } from 'rxjs';

// Create an Observable that will publish a value on an interval
const secondsCounter = interval(1000);
// Subscribe to begin publishing values
secondsCounter.subscribe(n =>
  console.log(`It's been ${n} seconds since subscribing!`));

如上所示， 首先引入rxjs，其次定義一個 一秒的循環 函數， 然後調用該函數，並輸出該時間