1  var arrayMap = require('./_arrayMap'),
 2      baseClone = require('./_baseClone'),
 3      baseUnset = require('./_baseUnset'),
 4      castPath = require('./_castPath'),
 5      copyObject = require('./_copyObject'),
 6      customOmitClone = require('./_customOmitClone'),
 7      flatRest = require('./_flatRest'),
 8      getAllKeysIn = require('./_getAllKeysIn');
 9  
10  /** Used to compose bitmasks for cloning. */
11  var CLONE_DEEP_FLAG = 1,
12      CLONE_FLAT_FLAG = 2,
13      CLONE_SYMBOLS_FLAG = 4;
14  
15  /**
16   * The opposite of `_.pick`; this method creates an object composed of the
17   * own and inherited enumerable property paths of `object` that are not omitted.
18   *
19   * **Note:** This method is considerably slower than `_.pick`.
20   *
21   * @static
22   * @since 0.1.0
23   * @memberOf _
24   * @category Object
25   * @param {Object} object The source object.
26   * @param {...(string|string[])} [paths] The property paths to omit.
27   * @returns {Object} Returns the new object.
28   * @example
29   *
30   * var object = { 'a': 1, 'b': '2', 'c': 3 };
31   *
32   * _.omit(object, ['a', 'c']);
33   * // => { 'b': '2' }
34   */
35  var omit = flatRest(function(object, paths) {
36    var result = {};
37    if (object == null) {
38      return result;
39    }
40    var isDeep = false;
41    paths = arrayMap(paths, function(path) {
42      path = castPath(path, object);
43      isDeep || (isDeep = path.length > 1);
44      return path;
45    });
46    copyObject(object, getAllKeysIn(object), result);
47    if (isDeep) {
48      result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
49    }
50    var length = paths.length;
51    while (length--) {
52      baseUnset(result, paths[length]);
53    }
54    return result;
55  });
56  
57  module.exports = omit;