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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>bufferCount</title>
  <script src="https://npmcdn.com/@reactivex/rxjs@5.0.0-beta.3/dist/global/Rx.umd.js"></script>
</head>
<body>
</body>
</html>
 
//emit immediately, then every 5s
const source = Rx.Observable.timer(0, 5000);
//switch to new inner observable when source emits, emit items that are emitted
const example = source.switchMap(() => Rx.Observable.interval(500));
//output: 0,1,2,3,4,5,6,7,8,9...0,1,2,3,4,5,6,7,8
const subscribe = example.subscribe(val => console.log(val));
//emit every click
const sourceTwo = Rx.Observable.fromEvent(document, 'click');
//if another click comes within 3s, message will not be emitted
const exampleTwo = sourceTwo.switchMap(val => Rx.Observable.interval(3000).mapTo('Hello, I made it!'));
//(click)...3s...'Hello I made it!'...(click)...2s(click)...
const subscribeTwo = exampleTwo.subscribe(val => console.log(val));
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