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  1. var baseIteratee = require('./_baseIteratee'),
  2. baseSortedIndexBy = require('./_baseSortedIndexBy');
  3. /**
  4. * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
  5. * which is invoked for `value` and each element of `array` to compute their
  6. * sort ranking. The iteratee is invoked with one argument: (value).
  7. *
  8. * @static
  9. * @memberOf _
  10. * @since 4.0.0
  11. * @category Array
  12. * @param {Array} array The sorted array to inspect.
  13. * @param {*} value The value to evaluate.
  14. * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
  15. * @returns {number} Returns the index at which `value` should be inserted
  16. * into `array`.
  17. * @example
  18. *
  19. * var objects = [{ 'x': 4 }, { 'x': 5 }];
  20. *
  21. * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
  22. * // => 1
  23. *
  24. * // The `_.property` iteratee shorthand.
  25. * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
  26. * // => 1
  27. */
  28. function sortedLastIndexBy(array, value, iteratee) {
  29. return baseSortedIndexBy(array, value, baseIteratee(iteratee, 2), true);
  30. }
  31. module.exports = sortedLastIndexBy;