Promises & then/catch

Promise.allSettled([
  Promise.resolve(1),
  Promise.reject('error'),
  Promise.resolve(3)
])

It's faster than Promise.all()
It waits for all Promises regardless of rejection
Promise.allSettled() differs from Promise.all() in crucial ways: 1) Waits for all Promises to complete, regardless of success or failure, 2) Returns an array of objects describing each Promise's outcome, 3) Each result object has status ('fulfilled' or 'rejected') and value/reason properties, 4) Never rejects itself, 5) Perfect for situations where you need to know the outcome of all operations, regardless of success.
It only returns successful results
It automatically retries failed Promises