timer.unsubscribe不是一个函数Angular2 [英] timer.unsubscribe is not a function Angular2

问题描述

试图制作一个简单的计时器，需要在某些if条件下将其中断.但是总是出现错误EXCEPTION: timer.unsubscribe is not a function.

Tried to make a simple timer and need to break it on some if condition. But always got an error EXCEPTION: timer.unsubscribe is not a function.

我在做什么错了?

    let timer:any = Observable.timer(0,1000);
    timer.subscribe(data => {
            console.log(this.itemsRatedList);
            if(data == 5) timer.unsubscribe();
        });

推荐答案

应为:

let timer:any = Observable.timer(0,1000);
let subscription = timer.subscribe(data => {
  console.log(this.itemsRatedList);
  if(data == 5) 
    subscription.unsubscribe();
});

您不能unsubscribe一个Observable，只能一个Subscription.

You can't unsubscribe an Observable, only a Subscription.

> 柱塞示例

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