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<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 values in sequence every 1sconst source = Rx.Observable.interval(1000);//start with -3, -2, -1const example = source.startWith(-3, -2, -1);//output: -3, -2, -1, 0, 1, 2....const subscribe = example.subscribe(val => console.log(val));
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300px
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