Is it possible to attach then after catch?

Yes, after catch you can attach a then. In a promise chain, catch handles errors, and then the next then continues execution with the result returned by catch (if it returns anything). This allows, for example, to handle an error and return a fallback value so that the chain continues without errors.

Example:

Promise.reject('Error')
  .catch(error => {
    console.log('Caught error:', error);
    return 'Fallback value';
  })
  .then(value => {
    console.log('Next:', value); // Will output 'Next: Fallback value'
  });

Thus, having a then after catch is a normal practice to continue the chain after error handling.