1  var baseIteratee = require('./_baseIteratee'),
 2      baseSortedUniq = require('./_baseSortedUniq');
 3  
 4  /**
 5   * This method is like `_.uniqBy` except that it's designed and optimized
 6   * for sorted arrays.
 7   *
 8   * @static
 9   * @memberOf _
10   * @since 4.0.0
11   * @category Array
12   * @param {Array} array The array to inspect.
13   * @param {Function} [iteratee] The iteratee invoked per element.
14   * @returns {Array} Returns the new duplicate free array.
15   * @example
16   *
17   * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
18   * // => [1.1, 2.3]
19   */
20  function sortedUniqBy(array, iteratee) {
21    return (array && array.length)
22      ? baseSortedUniq(array, baseIteratee(iteratee, 2))
23      : [];
24  }
25  
26  module.exports = sortedUniqBy;