# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs) # RxJS Virtual Time Module # The Reactive Extensions for JavaScript supports a notion of virtual time, which allows you to mock time easily, or even run through historical data through the `HistoricalScheduler`. ## Details ## Files: - [`rx.virtualtime.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.virtualtime.js) NPM Packages: - [`rx`](https://www.npmjs.org/package/rx) NuGet Packages: - [`RxJS-VirtualTime`](http://www.nuget.org/packages/RxJS-VirtualTime/) File Dependencies: - [`rx.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.js) | [`rx.compat.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.compat.js) | [`rx.lite.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.lite.js) | [`rx.lite.compat.js`](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.lite.compat.js) NuGet Dependencies: - [`RxJS-All`](http://www.nuget.org/packages/RxJS-All/) - [`RxJS-Main`](http://www.nuget.org/packages/RxJS-Main/) ## Included Classes ## ### Schedulers - [`Rx.HistoricalScheduler`](../../api/schedulers/historicalscheduler.md) - [`Rx.VirtualTimeScheduler`](../../api/schedulers/virtualtimescheduler.md)