1 | import apply from './_apply.js';
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2 | import arrayMap from './_arrayMap.js';
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3 | import unzip from './unzip.js';
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4 |
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5 | /**
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6 | * This method is like `_.unzip` except that it accepts `iteratee` to specify
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7 | * how regrouped values should be combined. The iteratee is invoked with the
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8 | * elements of each group: (...group).
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9 | *
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10 | * @static
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11 | * @memberOf _
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12 | * @since 3.8.0
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13 | * @category Array
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14 | * @param {Array} array The array of grouped elements to process.
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15 | * @param {Function} [iteratee=_.identity] The function to combine
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16 | * regrouped values.
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17 | * @returns {Array} Returns the new array of regrouped elements.
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18 | * @example
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19 | *
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20 | * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
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21 | * // => [[1, 10, 100], [2, 20, 200]]
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22 | *
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23 | * _.unzipWith(zipped, _.add);
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24 | * // => [3, 30, 300]
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25 | */
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26 | function unzipWith(array, iteratee) {
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27 | if (!(array && array.length)) {
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28 | return [];
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29 | }
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30 | var result = unzip(array);
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31 | if (iteratee == null) {
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32 | return result;
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33 | }
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34 | return arrayMap(result, function(group) {
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35 | return apply(iteratee, undefined, group);
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36 | });
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37 | }
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38 |
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39 | export default unzipWith;
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