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on this file since 571e0df was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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1 | var baseDifference = require('./_baseDifference'),
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2 | baseFlatten = require('./_baseFlatten'),
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3 | baseUniq = require('./_baseUniq');
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4 |
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5 | /**
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6 | * The base implementation of methods like `_.xor`, without support for
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7 | * iteratee shorthands, that accepts an array of arrays to inspect.
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8 | *
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9 | * @private
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10 | * @param {Array} arrays The arrays to inspect.
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11 | * @param {Function} [iteratee] The iteratee invoked per element.
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12 | * @param {Function} [comparator] The comparator invoked per element.
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13 | * @returns {Array} Returns the new array of values.
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14 | */
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15 | function baseXor(arrays, iteratee, comparator) {
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16 | var length = arrays.length;
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17 | if (length < 2) {
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18 | return length ? baseUniq(arrays[0]) : [];
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19 | }
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20 | var index = -1,
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21 | result = Array(length);
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22 |
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23 | while (++index < length) {
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24 | var array = arrays[index],
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25 | othIndex = -1;
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26 |
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27 | while (++othIndex < length) {
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28 | if (othIndex != index) {
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29 | result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
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30 | }
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31 | }
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32 | }
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33 | return baseUniq(baseFlatten(result, 1), iteratee, comparator);
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34 | }
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35 |
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36 | module.exports = baseXor;
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