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var arrayMap = require('./_arrayMap'),
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    baseIntersection = require('./_baseIntersection'),
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    baseRest = require('./_baseRest'),
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    castArrayLikeObject = require('./_castArrayLikeObject'),
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    last = require('./last');
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/**
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 * This method is like `_.intersection` except that it accepts `comparator`
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 * which is invoked to compare elements of `arrays`. The order and references
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 * of result values are determined by the first array. The comparator is
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 * invoked with two arguments: (arrVal, othVal).
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 *
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 * @static
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 * @memberOf _
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 * @since 4.0.0
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 * @category Array
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 * @param {...Array} [arrays] The arrays to inspect.
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 * @param {Function} [comparator] The comparator invoked per element.
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 * @returns {Array} Returns the new array of intersecting values.
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 * @example
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 *
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 * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
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 * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
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 *
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 * _.intersectionWith(objects, others, _.isEqual);
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 * // => [{ 'x': 1, 'y': 2 }]
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 */
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var intersectionWith = baseRest(function(arrays) {
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  var comparator = last(arrays),
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      mapped = arrayMap(arrays, castArrayLikeObject);
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  comparator = typeof comparator == 'function' ? comparator : undefined;
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  if (comparator) {
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    mapped.pop();
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  }
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  return (mapped.length && mapped[0] === arrays[0])
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    ? baseIntersection(mapped, undefined, comparator)
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    : [];
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});
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module.exports = intersectionWith;
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