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688 BJavaScriptView Raw
1/**
2 * The base implementation of `_.findIndex` and `_.findLastIndex` without
3 * support for iteratee shorthands.
4 *
5 * @private
6 * @param {Array} array The array to search.
7 * @param {Function} predicate The function invoked per iteration.
8 * @param {boolean} [fromRight] Specify iterating from right to left.
9 * @returns {number} Returns the index of the matched value, else `-1`.
10 */
11function baseFindIndex(array, predicate, fromRight) {
12 var length = array.length,
13 index = fromRight ? length : -1;
14
15 while ((fromRight ? index-- : ++index < length)) {
16 if (predicate(array[index], index, array)) {
17 return index;
18 }
19 }
20 return -1;
21}
22
23export default baseFindIndex;