const firstPromise = new MyPromise((resolve, reject) => {
  console.log('RUNNING THE EXECUTOR FUNCTION');
  // imagine if this were an api call, that took a second
  // to respond with 'wubadubdub'
  setTimeout(() => resolve('wubadubdub'), 1000);
});

firstPromise.then(successMessage => console.log(`wahoo ${successMessage}`));