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var baseFindIndex = require('./_baseFindIndex'),
    baseIsNaN = require('./_baseIsNaN'),
    strictLastIndexOf = require('./_strictLastIndexOf'),
    toInteger = require('./toInteger');

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max,
    nativeMin = Math.min;

/**
 * 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
 */
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);
}

module.exports = lastIndexOf;