正しいPromise.reverseとPromise.anyの実装例

Promise.js

Promise.reverse = function reverse(promise){
  // 範囲を広げるために、一応instanceof Promiseではなく、thenableを通すようにしてる。
  switch(true){
    case (typeof(promise) !== "object"):
    case (promise === null):
    case (typeof(promise.then) !== "function"):
      return Promise.reject(promise);
  }
  
  return promise.then((data)=> Promise.reject(data), (err)=> Promise.resolve(err));
};

Promise.any = function any(iterable){
  return Promise.reverse(Promise.all([...iterable].map(Promise.reverse)));
};

// 見た目の美しさだと↑なんだけど、速度重視ならfor使った↓ほうがいいかもね
Promise.any = function any(iterable){
  const promises = [];
  for(const promise of iterable){
    promises.push(Promise.reverse(promise));
  }
  return Promise.reverse(Promise.all(promises));
};

@gaogao-9 I should say, even after 5-years later, you is genius. I not able to solve in interview and then seen your solution from promise-any PR. Very amazing and simple

@dalisoft Glad it helped!