1
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var arrayFilter = require('./_arrayFilter'),
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2
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arrayMap = require('./_arrayMap'),
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3
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baseProperty = require('./_baseProperty'),
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4
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baseTimes = require('./_baseTimes'),
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5
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isArrayLikeObject = require('./isArrayLikeObject');
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6
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7
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/* Built-in method references for those with the same name as other `lodash` methods. */
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8
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var nativeMax = Math.max;
|
9
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|
10
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/**
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11
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* This method is like `_.zip` except that it accepts an array of grouped
|
12
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* elements and creates an array regrouping the elements to their pre-zip
|
13
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* configuration.
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14
|
*
|
15
|
* @static
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16
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* @memberOf _
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17
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* @since 1.2.0
|
18
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* @category Array
|
19
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* @param {Array} array The array of grouped elements to process.
|
20
|
* @returns {Array} Returns the new array of regrouped elements.
|
21
|
* @example
|
22
|
*
|
23
|
* var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
|
24
|
* // => [['a', 1, true], ['b', 2, false]]
|
25
|
*
|
26
|
* _.unzip(zipped);
|
27
|
* // => [['a', 'b'], [1, 2], [true, false]]
|
28
|
*/
|
29
|
function unzip(array) {
|
30
|
if (!(array && array.length)) {
|
31
|
return [];
|
32
|
}
|
33
|
var length = 0;
|
34
|
array = arrayFilter(array, function(group) {
|
35
|
if (isArrayLikeObject(group)) {
|
36
|
length = nativeMax(group.length, length);
|
37
|
return true;
|
38
|
}
|
39
|
});
|
40
|
return baseTimes(length, function(index) {
|
41
|
return arrayMap(array, baseProperty(index));
|
42
|
});
|
43
|
}
|
44
|
|
45
|
module.exports = unzip;
|