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 inspect.
 7   * @param {Function} predicate The function invoked per iteration.
 8   * @param {number} fromIndex The index to search from.
 9   * @param {boolean} [fromRight] Specify iterating from right to left.
10   * @returns {number} Returns the index of the matched value, else `-1`.
11   */
12  function baseFindIndex(array, predicate, fromIndex, fromRight) {
13    var length = array.length,
14        index = fromIndex + (fromRight ? 1 : -1);
15  
16    while ((fromRight ? index-- : ++index < length)) {
17      if (predicate(array[index], index, array)) {
18        return index;
19      }
20    }
21    return -1;
22  }
23  
24  module.exports = baseFindIndex;