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.DS_Store

# rxjs-subjects-and-multicasting-operators

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
</head>
<body>
	<script src="https://unpkg.com/rxjs@5.4.3/bundles/Rx.min.js"></script>
	<script src="script.js"></script>
</body>
</html>

function subjectFactory() {
  return new Rx.Subject(); 
}

var shared = Rx.Observable.interval(1000).take(6)
  .do(x => console.log('source ' + x) || displayInPreview('source ' + x))
  .multicast(subjectFactory)
  .refCount();

// subject: --0--1--2--3--4--5|
//                               A
// subject2:                     --0--1--2--3--4--5|

var observerA = {
  next: function (x) { console.log('A next ' + x) || displayInPreview('A next ' + x); },
  error: function (err) { console.log('A error ' + err) || displayInPreview('A error ' + err); },
  complete: function () { console.log('A done') || displayInPreview('A done'); },
};

var subA = shared.subscribe(observerA); // 0 => 1
console.log('subscribed A') || displayInPreview('subscribed A');

var observerB = {
  next: function (x) { console.log('B next ' + x) || displayInPreview('B next ' + x); },
  error: function (err) { console.log('B error ' + err) || displayInPreview('B error ' + err); },
  complete: function () { console.log('B done') || displayInPreview('B done'); },
};

var subB;
setTimeout(function () {
  subB = shared.subscribe(observerB);
  console.log('subscribed B') || displayInPreview('subscribed B');
}, 2000);

setTimeout(function () {
  subA.unsubscribe();
  console.log('unsubscribed A') || displayInPreview('unsubscribed A');
}, 5000);

setTimeout(function () {
  subB.unsubscribe();
  console.log('unsubscribed B') || displayInPreview('unsubscribed B');
}, 7000);

setTimeout(function () {
  subA = shared.subscribe(observerA); // 0 => 1 (connect)
  console.log('subscribed A') || displayInPreview('subscribed A');
}, 8000);





// display in plunker preview
function displayInPreview(string) {
  var newDiv = document.createElement("div"); 
  var newContent = document.createTextNode(string); 
  newDiv.appendChild(newContent);
  document.body.appendChild(newDiv)
}