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1import baseSortedIndex from './_baseSortedIndex.js';
2import eq from './eq.js';
3
4/**
5 * This method is like `_.lastIndexOf` except that it performs a binary
6 * search on a sorted `array`.
7 *
8 * @static
9 * @memberOf _
10 * @since 4.0.0
11 * @category Array
12 * @param {Array} array The array to inspect.
13 * @param {*} value The value to search for.
14 * @returns {number} Returns the index of the matched value, else `-1`.
15 * @example
16 *
17 * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
18 * // => 3
19 */
20function sortedLastIndexOf(array, value) {
21 var length = array == null ? 0 : array.length;
22 if (length) {
23 var index = baseSortedIndex(array, value, true) - 1;
24 if (eq(array[index], value)) {
25 return index;
26 }
27 }
28 return -1;
29}
30
31export default sortedLastIndexOf;