@lifaon/rx-js-light/src/observable/built-in/from/without-notifications/many-observables/merge/merge.mjs

Blazing fast Observables

export function merge(observables) {
  return emit => {
    const unsubscribe = observables.map(subscribe => {
      return subscribe(emit);
    });
    return () => {
      for (let i = 0, l = unsubscribe.length; i < l; i++) {
        unsubscribe[i]();
      }
    };
  };
}