var baseAt = require('../internal/baseAt'),
      baseCompareAscending = require('../internal/baseCompareAscending'),
      baseFlatten = require('../internal/baseFlatten'),
      basePullAt = require('../internal/basePullAt'),
      restParam = require('../function/restParam');
  
  /**
   * Removes elements from `array` corresponding to the given indexes and returns
   * an array of the removed elements. Indexes may be specified as an array of
   * indexes or as individual arguments.
   *
   * **Note:** Unlike `_.at`, this method mutates `array`.
   *
   * @static
   * @memberOf _
   * @category Array
   * @param {Array} array The array to modify.
   * @param {...(number|number[])} [indexes] The indexes of elements to remove,
   *  specified as individual indexes or arrays of indexes.
   * @returns {Array} Returns the new array of removed elements.
   * @example
   *
   * var array = [5, 10, 15, 20];
   * var evens = _.pullAt(array, 1, 3);
   *
   * console.log(array);
   * // => [5, 15]
   *
   * console.log(evens);
   * // => [10, 20]
   */
  var pullAt = restParam(function(array, indexes) {
    indexes = baseFlatten(indexes);
  
    var result = baseAt(array, indexes);
    basePullAt(array, indexes.sort(baseCompareAscending));
    return result;
  });
  
  module.exports = pullAt;