Angular 6 + RxJS 6.0 : How to push new element to array contained by Observable

Question

I am receiving data from firebase server in chunks while rendering that data requires a library which insists on observable contains Array. I am somehow unable to push a new dat

Answer 1

In addition to GeoAstronaute's answer, here's how I would remove stuff from the array:

  removeElementToObservableArray(idx) {
    this.array$.pipe(take(1)).subscribe(val => {
      const arr = this.subject.getValue()
      arr.splice(idx, 1)
      this.subject.next(arr)
    })
  }

I.E: your ngforloop in the HTML could have the let i = index, which would provide an index to the data you wanted to remove. Secondly, the remove function has to be inside the ngforloop tag :-)