HORIZON PROJECT

var baseUpdate = require('./_baseUpdate'),

    castFunction = require('./_castFunction');

/**

 * This method is like `_.update` except that it accepts `customizer` which is

 * invoked to produce the objects of `path`.  If `customizer` returns `undefined`

 * path creation is handled by the method instead. The `customizer` is invoked

 * with three arguments: (nsValue, key, nsObject).

 *

 * **Note:** This method mutates `object`.

 *

 * @static

 * @memberOf _

 * @since 4.6.0

 * @category Object

 * @param {Object} object The object to modify.

 * @param {Array|string} path The path of the property to set.

 * @param {Function} updater The function to produce the updated value.

 * @param {Function} [customizer] The function to customize assigned values.

 * @returns {Object} Returns `object`.

 * @example

 *

 * var object = {};

 *

 * _.updateWith(object, '[0][1]', _.constant('a'), Object);

 * // => { '0': { '1': 'a' } }

 */

function updateWith(object, path, updater, customizer) {

  customizer = typeof customizer == 'function' ? customizer : undefined;

  return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);

}

module.exports = updateWith;