@ou-imdt/utils/lib/isPromiseRejected.js

Utility library for interactive media development

/**
 * checks if promise is rejected
 * @param {Promise} promise - the Promise object to check
 * @returns {Promise<boolean>}
 */
export default function isPromiseRejected(promise) {
  const challenger = new Promise(resolve => setTimeout(() => resolve(false), 0));
  return Promise.race([challenger, promise.then(() => false, () => true)]);
}