1 | import baseFindIndex from './_baseFindIndex';
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2 | import baseIteratee from './_baseIteratee';
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3 |
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4 | /**
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5 | * This method is like `_.findIndex` except that it iterates over elements
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6 | * of `collection` from right to left.
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7 | *
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8 | * @static
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9 | * @memberOf _
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10 | * @since 2.0.0
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11 | * @category Array
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12 | * @param {Array} array The array to search.
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13 | * @param {Array|Function|Object|string} [predicate=_.identity]
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14 | * The function invoked per iteration.
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15 | * @returns {number} Returns the index of the found element, else `-1`.
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16 | * @example
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17 | *
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18 | * var users = [
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19 | * { 'user': 'barney', 'active': true },
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20 | * { 'user': 'fred', 'active': false },
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21 | * { 'user': 'pebbles', 'active': false }
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22 | * ];
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23 | *
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24 | * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
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25 | * // => 2
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26 | *
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27 | * // The `_.matches` iteratee shorthand.
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28 | * _.findLastIndex(users, { 'user': 'barney', 'active': true });
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29 | * // => 0
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30 | *
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31 | * // The `_.matchesProperty` iteratee shorthand.
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32 | * _.findLastIndex(users, ['active', false]);
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33 | * // => 2
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34 | *
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35 | * // The `_.property` iteratee shorthand.
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36 | * _.findLastIndex(users, 'active');
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37 | * // => 0
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38 | */
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39 | function findLastIndex(array, predicate) {
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40 | return (array && array.length)
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41 | ? baseFindIndex(array, baseIteratee(predicate, 3), true)
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42 | : -1;
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43 | }
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44 |
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45 | export default findLastIndex;
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