Combine multiple observable arrays into new object array

Question

I have 3 observable arrays like below.

persons = [
   {
      \"firstName\":\"john\",
      \"lastName\":\"public\",
      \"locationID\":\"1\",
      \"depa         


        

Answer 1

i think the RxJS .zip operator may be your friend here.

As far as I understand, .zip emits like this ...

.zip(
   Observable.from[array1].switchMap( // map to http response here ),
   Observable.from[array2].switchMap( // map to http response here ),
   Observable.from[array3].switchMap( // map to http response here )
).map((valueFromArray1, valueFromArray2, valueFromArray3) {
   // Create your object here 
})

Something like that! Hopefully, puts you on the right track.

.zip should emit the first time when all 3 have emitted (and it will emit a second time when all three stream have emitted twice, etc) - In your scenario I expect all three stream emit once only, which makes it a simple case for .zip