Map object to array recursively

index.js

/**
 * Convert map object to multidimensional array
 * @param  {Object} object map object
 * @return {Array}        map array
 */
const mapObjectToArray = object =>
  Object.keys(object).map((key) => {
    if (typeof object[key] === 'object') {
      return mapObjectToArray(object[key]);
    } else if (typeof object[key] === 'number') {
      return object[key];
    }
    throw new Error(`Unsupported element type in map: ${typeof object[key]}`);
  });