lodash/sortedLastIndexBy.js

define(['./_baseIteratee', './_baseSortedIndexBy'], function(baseIteratee, baseSortedIndexBy) {

  /**
   * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
   * which is invoked for `value` and each element of `array` to compute their
   * sort ranking. The iteratee is invoked with one argument: (value).
   *
   * @static
   * @memberOf _
   * @category Array
   * @param {Array} array The sorted array to inspect.
   * @param {*} value The value to evaluate.
   * @param {Function|Object|string} [iteratee=_.identity] The iteratee invoked per element.
   * @returns {number} Returns the index at which `value` should be inserted into `array`.
   * @example
   *
   * // The `_.property` iteratee shorthand.
   * _.sortedLastIndexBy([{ 'x': 4 }, { 'x': 5 }], { 'x': 4 }, 'x');
   * // => 1
   */
  function sortedLastIndexBy(array, value, iteratee) {
    return baseSortedIndexBy(array, value, baseIteratee(iteratee), true);
  }

  return sortedLastIndexBy;
});