plant.js
 1  var baseLodash = require('./_baseLodash'),
 2      wrapperClone = require('./_wrapperClone');
 3  
 4  /**
 5   * Creates a clone of the chain sequence planting `value` as the wrapped value.
 6   *
 7   * @name plant
 8   * @memberOf _
 9   * @since 3.2.0
10   * @category Seq
11   * @param {*} value The value to plant.
12   * @returns {Object} Returns the new `lodash` wrapper instance.
13   * @example
14   *
15   * function square(n) {
16   *   return n * n;
17   * }
18   *
19   * var wrapped = _([1, 2]).map(square);
20   * var other = wrapped.plant([3, 4]);
21   *
22   * other.value();
23   * // => [9, 16]
24   *
25   * wrapped.value();
26   * // => [1, 4]
27   */
28  function wrapperPlant(value) {
29    var result,
30        parent = this;
31  
32    while (parent instanceof baseLodash) {
33      var clone = wrapperClone(parent);
34      clone.__index__ = 0;
35      clone.__values__ = undefined;
36      if (result) {
37        previous.__wrapped__ = clone;
38      } else {
39        result = clone;
40      }
41      var previous = clone;
42      parent = parent.__wrapped__;
43    }
44    previous.__wrapped__ = value;
45    return result;
46  }
47  
48  module.exports = wrapperPlant;