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30 lines
953 B
30 lines
953 B
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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