Function dispatch

packages/core/test/mappers/renderer.test.ts:78–83

(
    action: T
  )

): [() => JsonFormsCore, Redux.Dispatch<CoreActions>] => {
  const coreContainer = { core: initialCore };
  const dispatch: Redux.Dispatch<CoreActions> = <T extends CoreActions>(
    action: T
  ): T => {
    coreContainer.core = coreReducer(coreContainer.core, action);
    return action;
  };
  const getCore = () => coreContainer.core;
  return [getCore, dispatch];
};