求两个数组的交集。
/**
* @param {number[]} nums1
* @param {number[]} nums2
* @return {number[]}
*/
var intersection = function(nums1, nums2) {
let set1 = new Set(nums1)
let set2 = new Set(nums2)
let res = []
for(let e of set1) {
if(set2.has(e)) {
res.push(e)
}
}
return res
};
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本文标题：349. Intersection of Two Arrays
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