Function subscribe

src/devtools/devtoolsMiddleware.ts:103–111

(store: Store, middleware: { initialized?: boolean })

}

function subscribe(store: Store, middleware: { initialized?: boolean }) {
  if (!middleware.initialized) {
    const storeUpdate = update.bind(store);
    if (devTools.instance) {
      devTools.instance.subscribe(storeUpdate);
    }
    middleware.initialized = true;
  }
}

const devtoolsMiddleware = (store: Store) => (next: Function, args: any) => (
  action: Action