1  var baseClone = require('./_baseClone');
 2  
 3  /** Used to compose bitmasks for cloning. */
 4  var CLONE_DEEP_FLAG = 1,
 5      CLONE_SYMBOLS_FLAG = 4;
 6  
 7  /**
 8   * This method is like `_.clone` except that it recursively clones `value`.
 9   *
10   * @static
11   * @memberOf _
12   * @since 1.0.0
13   * @category Lang
14   * @param {*} value The value to recursively clone.
15   * @returns {*} Returns the deep cloned value.
16   * @see _.clone
17   * @example
18   *
19   * var objects = [{ 'a': 1 }, { 'b': 2 }];
20   *
21   * var deep = _.cloneDeep(objects);
22   * console.log(deep[0] === objects[0]);
23   * // => false
24   */
25  function cloneDeep(value) {
26    return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
27  }
28  
29  module.exports = cloneDeep;