33. implement `Promise.allSettled()`

The Promise.allSettled() method returns a promise that resolves after all of the given promises have either fulfilled or rejected, with an array of objects that each describes the outcome of each promise.

• from MDN

Different from Promise.all() which rejects right away once an error occurs, Promise.allSettled() waits for all promises to settle.

Now can you implement your own allSettled() ?

note

Do not use Promise.allSettled() directly, it helps nothing.