define(['./internal/apply', './internal/assignInDefaults', './assignInWith', './rest'], function(apply, assignInDefaults, assignInWith, rest) {

/** Used as a safe reference for `undefined` in pre-ES5 environments. */

var undefined;

/**

* Assigns own and inherited enumerable properties of source objects to the

* destination object for all destination properties that resolve to `undefined`.

* Source objects are applied from left to right. Once a property is set,

* additional values of the same property are ignored.

*

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

*

* @static

* @memberOf _

* @category Object

* @param {Object} object The destination object.

* @param {...Object} [sources] The source objects.

* @returns {Object} Returns `object`.

* @example

*

* _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });

* // => { 'user': 'barney', 'age': 36 }

*/

var defaults = rest(function(args) {

args.push(undefined, assignInDefaults);

return apply(assignInWith, undefined, args);

});

return defaults;

});