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var apply = require('./_apply'),
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    arrayMap = require('./_arrayMap'),
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    unzip = require('./unzip');
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/**
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 * This method is like `_.unzip` except that it accepts `iteratee` to specify
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 * how regrouped values should be combined. The iteratee is invoked with the
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 * elements of each group: (...group).
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 *
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 * @static
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 * @memberOf _
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 * @since 3.8.0
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 * @category Array
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 * @param {Array} array The array of grouped elements to process.
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 * @param {Function} [iteratee=_.identity] The function to combine
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 *  regrouped values.
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 * @returns {Array} Returns the new array of regrouped elements.
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 * @example
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 *
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 * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
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 * // => [[1, 10, 100], [2, 20, 200]]
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 *
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 * _.unzipWith(zipped, _.add);
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 * // => [3, 30, 300]
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 */
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function unzipWith(array, iteratee) {
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  if (!(array && array.length)) {
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    return [];
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  }
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  var result = unzip(array);
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  if (iteratee == null) {
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    return result;
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  }
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  return arrayMap(result, function(group) {
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    return apply(iteratee, undefined, group);
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  });
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}
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module.exports = unzipWith;