Verwaltung von Race Conditions in asynchronen Svelte-Effekten mittels kaskadierender AbortSignals

export function createCancellableTask(asyncFn) {
  let currentController = null;
  return async function (...args) {
    if (currentController) currentController.abort('New invocation initiated');
    currentController = new AbortController();
    const { signal } = currentController;
    try {
      return await asyncFn(signal, ...args);
    } catch (err) {
      if (err.name === 'AbortError' || signal.aborted) return;
      throw err;
    }
  };
}