importarrayMapfrom'./_arrayMap.js';importbaseIntersectionfrom'./_baseIntersection.js';importbaseIterateefrom'./_baseIteratee.js';importbaseRestfrom'./_baseRest.js';importcastArrayLikeObjectfrom'./_castArrayLikeObject.js';importlastfrom'./last.js'; /** * This method is like `_.intersection` except that it accepts `iteratee` * which is invoked for each element of each `arrays` to generate the criterion * by which they're compared. The order and references of result values are * determined by the first array. The iteratee is invoked with one argument: * (value). * * @static * @memberOf _ * @since 4.0.0 * @category Array * @param {...Array} [arrays] The arrays to inspect. * @param {Function} [iteratee=_.identity] The iteratee invoked per element. * @returns {Array} Returns the new array of intersecting values. * @example * * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); * // => [2.1] * * // The `_.property` iteratee shorthand. * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); * // => [{ 'x': 1 }] */var intersectionBy =baseRest(function(arrays){var iteratee =last(arrays), mapped =arrayMap(arrays, castArrayLikeObject); if(iteratee ===last(mapped)){ iteratee =undefined;}else{ mapped.pop();}return(mapped.length&& mapped[0]=== arrays[0])?baseIntersection(mapped,baseIteratee(iteratee,2)):[];}); exportdefault intersectionBy;