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: / lib / node_modules / gulp / node_modules / object.defaults /

Filename : mutable.js

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'use strict';

var each = require('array-each');
var slice = require('array-slice');
var forOwn = require('for-own');
var isObject = require('isobject');

/**
 * Extends the `target` object with properties of one or
 * more additional `objects`
 *
 * @name .defaults
 * @param  {Object} `target` The target object. Pass an empty object to shallow clone.
 * @param  {Object} `objects`
 * @return {Object}
 * @api public
 */

module.exports = function defaults(target, objects) {
  if (target == null) {
    return {};
  }

  each(slice(arguments, 1), function(obj) {
    if (isObject(obj)) {
      forOwn(obj, function(val, key) {
        if (target[key] == null) {
          target[key] = val;
        }
      });
    }
  });

  return target;
};