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36 lines
1.1 KiB
36 lines
1.1 KiB
var baseDifference = require('./_baseDifference'), |
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baseFlatten = require('./_baseFlatten'), |
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baseUniq = require('./_baseUniq'); |
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/** |
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* The base implementation of methods like `_.xor`, without support for |
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* iteratee shorthands, that accepts an array of arrays to inspect. |
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* |
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* @private |
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* @param {Array} arrays The arrays to inspect. |
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* @param {Function} [iteratee] The iteratee invoked per element. |
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* @param {Function} [comparator] The comparator invoked per element. |
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* @returns {Array} Returns the new array of values. |
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*/ |
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function baseXor(arrays, iteratee, comparator) { |
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var length = arrays.length; |
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if (length < 2) { |
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return length ? baseUniq(arrays[0]) : []; |
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} |
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var index = -1, |
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result = Array(length); |
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while (++index < length) { |
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var array = arrays[index], |
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othIndex = -1; |
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while (++othIndex < length) { |
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if (othIndex != index) { |
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result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); |
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} |
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} |
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} |
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return baseUniq(baseFlatten(result, 1), iteratee, comparator); |
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} |
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module.exports = baseXor;
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