从数组创建无限可重复的 Observable [英] Create infinite repeatable Observable from array

问题描述

假设我有一个数组 items

我知道我可以使用这个数组创建一个 observable

I know I can create an observable from this array using

Rx.Observable.fromArray(items)

我如何从这里创建一个惰性无限重复的可观察对象(即:只要有请求就重复这些项目)?

How do I create a lazily infinitely repeating observable from this (i.e.: repeating the items as long as they are being requested)?

尝试过

Rx.Observable.fromArray(items).repeat()

但这不会延迟执行，因此会锁定浏览器.

But this doesn't execute lazily and therefor locks up the browser.

推荐答案

你不能用 Observable 做到这一点.你想看看使用枚举.

You cannot do this with an Observable. You way want to look at using an Enumerable.

Reactive Extensions 的 Enumerable 风格被称为 Interective Extensions.

The Enumerable flavor of Reactive Extensions is known as Interective Extensions.

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