| var baseSortedIndex = require('./_baseSortedIndex'), |
| eq = require('./eq'); |
| |
| /** |
| * This method is like `_.indexOf` except that it performs a binary |
| * search on a sorted `array`. |
| * |
| * @static |
| * @memberOf _ |
| * @since 4.0.0 |
| * @category Array |
| * @param {Array} array The array to inspect. |
| * @param {*} value The value to search for. |
| * @returns {number} Returns the index of the matched value, else `-1`. |
| * @example |
| * |
| * _.sortedIndexOf([4, 5, 5, 5, 6], 5); |
| * // => 1 |
| */ |
| function sortedIndexOf(array, value) { |
| var length = array == null ? 0 : array.length; |
| if (length) { |
| var index = baseSortedIndex(array, value); |
| if (index < length && eq(array[index], value)) { |
| return index; |
| } |
| } |
| return -1; |
| } |
| |
| module.exports = sortedIndexOf; |