Get rejected promise value

[ricardoaguilarm]

After values are sent to allSettled, they are resolved or rejected in a promise.

How can I differentiate which values are rejected? Is there any way to know the value of these?
In console it only shows that it has been rejected but not its value.
I want rejected to say “value: 30” as it appears when the promise is fulfilled.

let arr = [30, 15]
      Promise.allSettled(arr)
        .then(responses => {
          responses.forEach((resp) => {
            console.log(resp)
          })
        }).catch(err => {
          console.log(err)
        }) 

[kevinSmith]

The status doesn’t do it?

[prasadsaya]

You can try something like this:

First define a custom Error class, with a field with the value you want to work with, for example id:

class MyCustomError extends Error {
  constructor(message, id) {
      super(message, id);
      this.name = 'My Custom Error';
      this.id = id
  }
}

Use this error class with your code like this:

function process_all_promises() {

  const arr = [ 
    Promise.resolve({ id: 1}), 
    Promise.reject(new MyCustomError('Error due to some reason with id', 15), 
    { id: 99 }
  ];

  Promise.allSettled(arr)
    .then(responses => {
      responses.forEach((resp) => {
        if (resp.status === 'rejected') {
          console.log('@ Reason:', JSON.stringify(resp.reason));
        }
        else {
          console.log('@ Success:', resp.value);
        }
      })
    }).catch(err => {
      console.log('Promise all errors', err);
    });
}

The value you want to capture is in the id field of the rejected promise’s reason object.

[ricardoaguilarm]

Not in rejected, look, there is no “job_application_id”.