RxJS 6 —— Subscription

Subscription

Subscription was called “Disposable”.

unsubscribe : release resources or cancel Observable executions

ob.subscribe 的返回类型是 subscription

import  { interval, Observable, of } from 'rxjs';const observable = interval(200);
const subscription = observable.subscribe(x=>console.log(x));
// subscription.unsubscribe();
setTimeout(() => {subscription.unsubscribe();
}, 1100);

管理多个subscription

add()

import  { interval, Observable, of } from 'rxjs';const observable = interval(200);
const ob2 = interval(200);
const subscription = observable.subscribe(x=>console.log(x));
const sub2 = observable.subscribe(x=>console.log(x*2));
// subscription.unsubscribe();
subscription.add(sub2);
setTimeout(() => {subscription.unsubscribe();
}, 1100);

remove()

import  { interval, Observable, of } from 'rxjs';const observable = interval(200);
const ob2 = interval(200);
const subscription = observable.subscribe(x=>console.log(x));
const sub2 = observable.subscribe(x=>console.log(x*2));
// subscription.unsubscribe();
subscription.add(sub2);
subscription.remove(sub2);
setTimeout(() => {subscription.unsubscribe();
}, 1100);

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RxJS 6 —— Subscription

Subscription

unsubscribe : release resources or cancel Observable executions

管理多个subscription

RxJS 6 —— Subscription相关推荐

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