LeetCode 1672. Richest Customer Wealth

題目

Input: accounts = [[1,2,3],[3,2,1]]
Output: 6
Explanation:
1st customer has wealth = 1 + 2 + 3 = 6
2nd customer has wealth = 3 + 2 + 1 = 6
Both customers are considered the richest with a wealth of 6 each, so return 6.

解法思維

用foreach()取出物件，再用reduce()計算，最後用 Math.max()抓出最大值

var maximumWealth = function(accounts) {
       let sum=[]
    accounts.forEach(item => {
        item.reduce(function (a, b) {
            sum.push(a+b)
            return a + b
        }, 0);
    });
    return Math.max(...sum)
};