Async Iterable

async-iterable.js

var asyncIterable = {
  [Symbol.asyncIterator]: async function* asyncGenerator() {
    var array = [Promise.resolve(1), Promise.resolve(2)];

    while (array.length) {
      // it waits for the promise to resolve
      // before yield the value
      yield await array.shift();
    }
  }
};

(async function() {
  // it waits for each item to resolve
  // before moving to the next()
  for await (const item of asyncIterable) {
    console.log(item);
    // 1 2
  }
})();