subject in angular 8
import { Injectable } from '@angular/core';
import { Observable, Subject } from 'rxjs';
@Injectable({ providedIn: 'root' })
export class MessageService {
private subject = new Subject<any>();
sendMessage(message: string) {
this.subject.next({ text: message });
}
clearMessages() {
this.subject.next();
}
getMessage(): Observable<any> {
return this.subject.asObservable();
}
}