Promise vs async/await

asyncawait.js

async function doSomething (value, reject = true) {
  if (reject) {
    throw value;
  } else {
    return value;
  }
}

async function task() {
  try {
    await doSomething('one', true);
  } catch (err) {
    return err;
  }

  try {
    await doSomething('one', false);
  } catch (err) {
    return err;
  }
}

task().then(console.log);

promise.js

const doSomething = (value, reject = true) => {
  if (reject) {
    return Promise.reject(value)
  } else {
    return Promise.resolve(value)
  }
}

doSomething('one', true)
  .then(
    () => doSomething('two', false),
    (err) => console.log(err) // handle errors from doSomething('one', true)
  )
  .catch(console.log); // handle errors from doSomething('two', false)