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30 lines
953 B
JavaScript
30 lines
953 B
JavaScript
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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/**
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* Creates an array of unique values that are included in all given arrays
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* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
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* for equality comparisons. The order and references of result values are
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* determined by the first array.
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*
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* @static
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* @memberOf _
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* @since 0.1.0
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* @category Array
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* @param {...Array} [arrays] The arrays to inspect.
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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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* _.intersection([2, 1], [2, 3]);
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* // => [2]
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*/
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var intersection = baseRest(function(arrays) {
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var mapped = arrayMap(arrays, castArrayLikeObject);
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return (mapped.length && mapped[0] === arrays[0])
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? baseIntersection(mapped)
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: [];
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});
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module.exports = intersection;
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