问个关于 RxJS 的问题

V2EX = way to explore

V2EX 是一个关于分享和探索的地方

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不使用 combineLatest 怎么达到这个效果？

    const id$ = of({
      id: '123',
    }).pipe(pluck('id'))

    const source$ = of({
      '123': 1,
      '234': 2,
    })

    combineLatest(source$, id$, (hash, id) => {
      return hash[id]
    }).subscribe(console.log)

Hash

const

source

1 replies • 2020-08-07 19:46:15 +08:00

Zhuzhuchenyan

Aug 7, 2020

换汤不换药的推荐 withlatestfrom, 不过这个操作符分主次，根据你要的逻辑写就好了