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31 lines
770 B
31 lines
770 B
var baseSortedIndex = require('./_baseSortedIndex'), |
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eq = require('./eq'); |
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/** |
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* This method is like `_.lastIndexOf` except that it performs a binary |
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* search on a sorted `array`. |
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* |
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* @static |
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* @memberOf _ |
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* @since 4.0.0 |
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* @category Array |
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* @param {Array} array The array to inspect. |
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* @param {*} value The value to search for. |
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* @returns {number} Returns the index of the matched value, else `-1`. |
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* @example |
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* |
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* _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); |
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* // => 3 |
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*/ |
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function sortedLastIndexOf(array, value) { |
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var length = array == null ? 0 : array.length; |
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if (length) { |
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var index = baseSortedIndex(array, value, true) - 1; |
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if (eq(array[index], value)) { |
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return index; |
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} |
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} |
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return -1; |
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} |
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module.exports = sortedLastIndexOf;
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