code: function lastIndexOf(array, value, fromIndex) {
        var length = array == null ? 0 : array.length;
        if (!length) {
          return -1;
        }
        var index = length;
        if (fromIndex !== undefined) {
          index = toInteger(fromIndex);
          index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
        }
        return value === value
          ? strictLastIndexOf(array, value, index)
          : baseFindIndex(array, baseIsNaN, index, true);
      }
docs: This method is like `_.indexOf` except that it iterates over elements of
  `array` from right to left.
  
  @static
  @memberOf _
  @since 0.1.0
  @category Array
  @param {Array} array The array to inspect.
  @param {*} value The value to search for.
  @param {number} [fromIndex=array.length-1] The index to search from.
  @returns {number} Returns the index of the matched value, else `-1`.
  @example
  
  _.lastIndexOf([1, 2, 1, 2], 2);
  // => 3
  
  // Search from the `fromIndex`.
  _.lastIndexOf([1, 2, 1, 2], 2, 2);
  // => 1