promiser_chain_catch.js

function promiser(input) {
  if (input === 1) {
    return Promise.resolve(input);
  }
  if (input === 2) {
    return Promise.reject(new Error('Rejected'));
  }
  throw new Error('Broken');
}

promiser(1)
  .then((input) => {
    console.log(`Got input: ${input}`);
    return promiser(2);
  }).then((input) => {
    console.log(`Got input: ${input}`);
    return promiser(3);
  })
  .catch((err) => {
    console.log(err.stack);
  });

/*
Got input: 1
Error: Rejected
    at promiser (/Users/fritzy/test.js:7:27)
    at /Users/fritzy/test.js:15:12
    at process._tickCallback (node.js:382:9)
    at Function.Module.runMain (module.js:432:11)
    at startup (node.js:141:18)
    at node.js:980:3
*/