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on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 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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