Something like this should work:

  function allSettled(promises) {
      let settled = promises.map(p => p.then(
          v => ({status: 'fulfilled', value: v}),
          r => ({status: 'rejected', reason: r})
      ));
      return Promise.all(settled);
  }
  
  let p1 = Promise.resolve('foo');
  let p2 = Promise.resolve('bar');
  let p3 = Promise.resolve('baz');
  allSettled([p1, p2, p3]).then(console.log);
  
  let p4 = Promise.reject('err1');
  let p5 = Promise.resolve('bar');
  let p6 = Promise.reject('err3');
  allSettled([p4, p5, p6]).then(console.log);