function baseFindIndex(array, predicate, fromIndex, fromRight) {
  var length = array.length,
      index = fromIndex + (fromRight ? 1 : -1);

  while (fromRight ? index-- : ++index < length) {
    if (predicate(array[index], index, array)) {
      return index;
    }
  }

  return -1;
}
The base implementation of `_.findIndex` and `_.findLastIndex` without
support for iteratee shorthands.

@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`.