@absinthe/socket/src/notifier/unobserve.js

Absinthe Socket

// @flow

import {remove as arrayRemove} from "@jumpn/utils-array";

import type {Notifier, Observer} from "./types";

const removeObserver = (observers, observer) =>
  arrayRemove(observers.indexOf(observer), 1, observers);

const unobserve = <Result, Variables: void | Object>(
  {activeObservers, ...rest}: Notifier<Result, Variables>,
  observer: Observer<Result, Variables>
) => ({
  ...rest,
  activeObservers: removeObserver(activeObservers, observer)
});

export default unobserve;