Turn Firebase snapshot into Array

gistfile1.js

// as if in a utils.js file

const isObject = obj => {
  return Object.prototype.toString.call(obj) === '[object Object]'
    ? true
    : false;
};

export const toArray = snap => {
  const array = [];
  snap.forEach(child => {
    const val = child.val();
    if (isObject(val)) {
      val.key = child.key;
    }
    array.push(val);
  });
  return array;
};