///
module Rx {
export interface Observable {
/**
* Concatenates all the observable sequences. This takes in either an array or variable arguments to concatenate.
* @returns {Observable} An observable sequence that contains the elements of each given sequence, in sequential order.
*/
concat(...sources: ObservableOrPromise[]): Observable;
}
}
(function() {
var o: Rx.Observable;
var io: Rx.IObservable;
var so: Rx.Subject;
var p: Rx.Promise;
var o: Rx.Observable = o.concat(o, io, so, p);
});