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defaults.js « lodash « node_modules « eslint « tools - github.com/nodejs/node.git - Unnamed repository; edit this file 'description' to name the repository.
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var apply = require('./_apply'),
    assignInDefaults = require('./_assignInDefaults'),
    assignInWith = require('./assignInWith'),
    rest = require('./rest');

/**
 * Assigns own and inherited enumerable string keyed 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
 * @since 0.1.0
 * @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);
});

module.exports = defaults;