How to return from a Promise's catch/then block?

Question

There are many tutorials on how to use \"then\" and \"catch\" while programming with JavaScript Promise. However, all these tutorials seem to miss an important point: return

Answer 1

There is no built-in functionality to skip the entirety of the remaining chain as you're requesting. However, you could imitate this behavior by throwing a certain error through each catch:

doSomething()
  .then(func1).catch(handleError)
  .then(func2).catch(handleError)
  .then(func3).catch(handleError);

function handleError(reason) {
  if (reason instanceof criticalError) {
    throw reason;
  }

  console.info(reason);
}

If any of the catch blocks caught a criticalError they would skip straight to the end and throw the error. Any other error would be console logged and before continuing to the next .then block.