Rx.HistoricalScheduler
class
Provides a virtual time scheduler that uses a Date
for absolute time and time spans for relative time. This inherits from the Rx.VirtualTimeScheduler
class.
Usage
The following shows an example of using the Rx.HistoricalScheduler
. This shows creating a minute's worth of data from January 1st, 1970.
// Initial data
var initialDate = 0;
var scheduler = new Rx.HistoricalScheduler(new Date(initialDate));
// Yield unto this subject
var s = new Rx.Subject();
// Some random data
function getData(time) {
return Math.floor(Math.random() * (time + 1));
}
// Enqueue 1 minute's worth of data
while (initialDate <= 60000) {
(function (i) {
scheduler.scheduleWithAbsolute(i, function () {
s.onNext({ value: getData(i), date: new Date(i) });
});
}(initialDate));
initialDate += 10000;
}
// Subscription set
s.subscribe(function (x) {
console.log('value: ', x.value);
console.log('date: ', x.date.toGMTString());
});
// Run it
scheduler.start();
// => value: 0
// => date: Thu, 1 Jan 1970 00:00:00 UTC
// => value: 2013
// => date: Thu, 1 Jan 1970 00:00:10 UTC
// => value: 5896
// => date: Thu, 1 Jan 1970 00:00:20 UTC
// => value: 5415
// => date: Thu, 1 Jan 1970 00:00:30 UTC
// => value: 13411
// => date: Thu, 1 Jan 1970 00:00:40 UTC
// => value: 15518
// => date: Thu, 1 Jan 1970 00:00:50 UTC
// => value: 51076
// => date: Thu, 1 Jan 1970 00:01:00 UTC
Location
File:
Dist:
NPM Packages:
NuGet Packages:
Unit Tests:
HistoricalScheduler Constructor
Inherited Classes
HistoricalScheduler Constructor
Rx.HistoricalScheduler([initialClock], [comparer])
Creates a new historical scheduler with the specified initial clock value.
参数
- [
initialClock
] (Function): Initial value for the clock. - [
comparer
] (Function): Comparer to determine causality of events based on absolute time.
例
function comparer (x, y) {
if (x > y) { return 1; }
if (x < y) { return -1; }
return 0;
}
var scheduler = new Rx.HistoricalScheduler(
new Date(0), /* initial clock of 0 */
comparer /* comparer for determining order */
);