在rxjs4.x中,Rx.Observable.fromCallback似乎接受作用域作为第二个参数,但在5.0中,此方法被更改为Rx.Observable.bindCallback而不接受范围参数。如何在bindCallback中添加范围参数。例如在ES6中。this.callback function doesn't use original this, so cannot get this.input
var observable = Rx.Observable.bindCallback</