202410122251
tags: #array

var intersection = function(nums1, nums2) {
	const allSet = new Set(nums1.concat(nums2));
	const set1 = new Set(nums1);
	const set2 = new Set(nums2);
	const res = [];
	for (const num of allSet) {
		if (set1.has(num) && set2.has(num)) {
			res.push(num);
		}
	}
	return res;
};

Reference

https://leetcode.com/problems/intersection-of-two-arrays/