爲什麼publishReplay(1).refCount()不會重播晚期訂戶的最後一個值?爲什麼Rxjs publishReplay(1).refCount()不能重放?
a = new Rx.Subject();
b = a.publishReplay(1).refCount();
a.subscribe(function(x){console.log('timely subscriber:',x)});
a.next(1);
b.subscribe(function(x){console.log('late subscriber:',x)});
<script src="http://reactivex.io/rxjs/user/script/0-Rx.js"></script>
預期輸出:
timely subscribe: 1
late subscriber: 1
實際輸出
timely subscriber: 1