| 1 | var arrayFilter = require('./_arrayFilter'),
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| 2 | baseIteratee = require('./_baseIteratee'),
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| 3 | baseRest = require('./_baseRest'),
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| 4 | baseXor = require('./_baseXor'),
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| 5 | isArrayLikeObject = require('./isArrayLikeObject'),
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| 6 | last = require('./last');
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| 7 |
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| 8 | /**
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| 9 | * This method is like `_.xor` except that it accepts `iteratee` which is
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| 10 | * invoked for each element of each `arrays` to generate the criterion by
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| 11 | * which by which they're compared. The order of result values is determined
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| 12 | * by the order they occur in the arrays. The iteratee is invoked with one
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| 13 | * argument: (value).
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| 14 | *
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| 15 | * @static
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| 16 | * @memberOf _
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| 17 | * @since 4.0.0
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| 18 | * @category Array
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| 19 | * @param {...Array} [arrays] The arrays to inspect.
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| 20 | * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
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| 21 | * @returns {Array} Returns the new array of filtered values.
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| 22 | * @example
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| 23 | *
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| 24 | * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
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| 25 | * // => [1.2, 3.4]
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| 26 | *
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| 27 | * // The `_.property` iteratee shorthand.
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| 28 | * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
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| 29 | * // => [{ 'x': 2 }]
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| 30 | */
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| 31 | var xorBy = baseRest(function(arrays) {
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| 32 | var iteratee = last(arrays);
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| 33 | if (isArrayLikeObject(iteratee)) {
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| 34 | iteratee = undefined;
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| 35 | }
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| 36 | return baseXor(arrayFilter(arrays, isArrayLikeObject), baseIteratee(iteratee, 2));
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| 37 | });
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| 38 |
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| 39 | module.exports = xorBy;
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