Immutable mapping on an object.

object_map.js

/**
 * Immutable mapping on an object.
 *
 * @param {Object} object
 * @param {Function} mapFunction
 * @return {Object}
 */
export default (object, mapFunction) =>
  Object.keys(object).reduce((clone, key) => {
    clone[key] = mapFunction(object[key], key);
    return clone;
  }, {});