text: /**
   * Compares two arrays by the given key and returns the difference
   *
   * @param {Array} firstArray
   * @param {Array} secondArray
   * @param {String} key
   * @returns {Array}
   */
  const filterByKey = (firstArray = [], secondArray = [], key = '') =>
    firstArray.filter(item => !secondArray.find(el => el[key] === item[key]));
  
  export default filterByKey;
  