Rx.Notification.prototype.hasValue

Determines whether the Notification has a value. Returns true for OnNext Notifications, and false for OnError and OnCompleted Notifications.

返回值

(Bool): Returns true for OnNext Notifications, and false for OnError and OnCompleted Notifications.

Example

var onNext = Rx.Notification.createOnNext(42);
console.log(onNext.hasValue);

// => true

var onCompleted = Rx.Notification.createOnCompleted();
console.log(onCompleted.hasValue);

// => false