@lifaon/rx-js-light/src/observable/built-in/from/without-notifications/iterable/from-iterator/from-iterator.mjs

Blazing fast Observables

import {noop} from "../../../../../../misc/helpers/noop.mjs";
export function fromIterator(iterator) {
  return emit => {
    let result;
    while (!(result = iterator.next()).done) {
      emit(result.value);
    }
    return noop;
  };
}