RxJS Subject pass value before subscribing

const rxjs = require('rxjs'); const { Subject } = rxjs const subject = new Subject(); // Subscriber 1 subject.subscribe({ next: (v) => console.log(`observerA: ${v}`) }); subject.next(1); // Subscriber 2 subject.subscribe({ next: (v) => console.log(`observerB: ${v}`) }); subject.next(2);