@reactivex/rxjs/src/operator/publishBehavior.ts

Reactive Extensions for modern JavaScript

import { Observable } from '../Observable';
import { BehaviorSubject } from '../BehaviorSubject';
import { multicast } from './multicast';
import { ConnectableObservable } from '../observable/ConnectableObservable';

/**
 * @param value
 * @return {ConnectableObservable<T>}
 * @method publishBehavior
 * @owner Observable
 */
export function publishBehavior<T>(this: Observable<T>, value: T): ConnectableObservable<T> {
  return multicast.call(this, new BehaviorSubject<T>(value));
}