leetCode刷题(找到两个数组拼接后的中间数)

nums1 = [1, 3]
nums2 = [2]

The median is 2.0

nums1 = [1, 2]
nums2 = [3, 4]

The median is (2 + 3)/2 = 2.5

/**
 * @param {number[]} nums1
 * @param {number[]} nums2
 * @return {number}
 */
var findMedianSortedArrays = function(nums1, nums2) {
    var sNums1=nums1;
    var sNums2=nums2;
    var nums = (sNums1.concat(sNums2))
    nums=nums.sort(function(i,j){
        return i-j;
    });
    var n=nums.length;
    if(n%2==0){
        return (nums[n/2-1]+nums[n/2])/2;
    }else{
        var index=Math.floor(n/2);
        return nums[index]
    }
};