ReplaySubject of RxJS
Learn how ReplaySubject can be used to send cached values to subscribers who joined late.
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A ReplaySubject caches its values and re-emits them to any Observer that subscribes to it late. Unlike with an AsyncSubject, the sequence doesn’t need to be completed for this to happen.
const Rx = require('rx');
var subject = new Rx.Subject();
subject.onNext(1);
subject.subscribe(
function(n)
{
console.log('Received value:', n);
});
subject.onNext(2);
subject.onNext(3);Subject
Now let’s try it with a ReplaySubject:
var Rx=require('rx');
var subject = new Rx.ReplaySubject();
subject.onNext(1);
subject.subscribe(
function(n)
{
console.log('Received value:', n);
});
subject.onNext(2);
subject.onNext(3);ReplaySubject
A ReplaySubject is useful for ensuring that Observers get all the values ...
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