lodash/_baseInverter.js

import baseForOwn from './_baseForOwn.js';

/**
 * The base implementation of `invert` and `invertBy` which inverts
 * `object` with values transformed by `iteratee` and set by `setter`.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} setter The function to set `accumulator` values.
 * @param {Function} iteratee The iteratee to transform values.
 * @param {Object} accumulator The initial inverted object.
 * @returns {Function} Returns `accumulator`.
 */
function baseInverter(object, setter, iteratee, accumulator) {
  baseForOwn(object, (value, key, object) => {
    setter(accumulator, iteratee(value), key, object);
  });
  return accumulator;
}

export default baseInverter;