Rx.Observable.prototype.take(count, [scheduler])

Returns a specified number of contiguous elements from the start of an observable sequence, using the specified scheduler for the edge case of take(0).

参数

1. count (Number): The number of elements to return.
2. [schduler] (Scheduler): Scheduler used to produce an onCompleted message in case count is set to 0.

返回值

(Observable): An observable sequence that contains the elements that occur after the specified index in the input sequence.

例