IterablePromise - Promise.all from iterated entities without the headache.

index.js

const IterablePromise = (iterableArray, promiseExecutorFunction) => {
  return Promise.all(
    iterableArray.map((item, index) => {
      return new Promise((resolve, reject)=>{
        promiseExecutorFunction(item, index, resolve, reject);
      });
    })
  );
};

// Usage:
const Persons = [
  { name: 'Xema'},
  { name: 'Siv'}
];
IterablePromise(Persons, (item, index, resolve, reject) => {
    console.log(item.name);
    resolve();
  })
  .then(() => {
   console.log('Done!');
  })
  .catch(console.error);

// Result:
// Xema
// Siv
// Done!

Can be interchanged with Promise.race

Or turned into a queue using async.queue