/** * The base implementation of `findIndex` and `findLastIndex`. * * @private * @param {Array} array The array to inspect. * @param {Function} predicate The function invoked per iteration. * @param {number} fromIndex The index to search from. * @param {boolean} [fromRight] Specify iterating from right to left. * @returns {number} Returns the index of the matched value, else `-1`. */ function baseFindIndex(array, predicate, fromIndex, fromRight) { const { length } = array; let index = fromIndex + (fromRight ? 1 : -1); while (fromRight ? index-- : ++index < length) { if (predicate(array[index], index, array)) { return index; } } return -1; } export default baseFindIndex;