Find the Difference of Two Arrays

LeetCode題目: 2215. Find the Difference of Two Arrays

My solution:

/**
 * @param {number[]} nums1
 * @param {number[]} nums2
 * @return {number[][]}
 */
let findDifference = (nums1, nums2) => {
    const n1 = new Set(nums1), n2 = new Set(nums2);
    return Array.of(Array.from(n1).filter(v => !n2.has(v)),Array.from(n2).filter(v => !n1.has(v)));
}