返回可观察或多种类型的函数的打字稿语法 [英] Typescript syntax for a function returning observable or multiple type

问题描述

我有一个函数可以返回所有小部件的 observable.有两种类型的小部件.这是我尝试过的，IDE 没有抱怨，但我的编译器有:

I have a function that returns an observable of all widgets. There a 2 types of widgets. Here's what I've tried and the IDE doesn't complain, but my compiler does:

public getAllWidgets(): Observable<WidgetType1 | WidgetType2> {
...
}

推荐答案

Observable<(WidgetType1 | WidgetType2)[]>

Observable<(WidgetType1 | WidgetType2)[]>

正在返回一个数组.错误并不清楚.

An array was being returned. The error wasn't clear on that.

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