import map from './map.js' import baseIntersection from './baseIntersection.js' import castArrayLikeObject from './castArrayLikeObject.js' /** * Creates an array of unique values that are included in all given arrays * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) * for equality comparisons. The order and references of result values are * determined by the first array. * * @since 0.1.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @returns {Array} Returns the new array of intersecting values. * @example * * intersection([2, 1], [2, 3]) * // => [2] */ function intersection(...arrays) { const mapped = map(arrays, castArrayLikeObject) return (mapped.length && mapped[0] === arrays[0]) ? baseIntersection(mapped) : [] } export default intersection