Like Promise.all, but it doesn't fail if one of the promises fails.

settled.js

function settled(promises) {
  const alwaysFulfilled = promises.map((p) => {
    return p.then((value) => {
      return { state: 'fulfilled', value: value };
    }, (reason) => {
      return { state: 'rejected', reason: reason };
    });
  });
  return Promise.all(alwaysFulfilled);
};