1672-richest-customer-wealth.js

/**
 * 1672. Richest Customer Wealth
 * https://leetcode.com/problems/richest-customer-wealth/
 * Difficulty: Easy
 *
 * You are given an m x n integer grid accounts where accounts[i][j] is the
 * amount of money the i​​​​​​​​​​​th​​​​ customer has in the j​​​​​​​​​​​th​​​​ bank. Return the wealth
 * that the richest customer has.
 *
 * A customer's wealth is the amount of money they have in all their bank
 * accounts. The richest customer is the customer that has the maximum wealth.
 */

/**
 * @param {number[][]} accounts
 * @return {number}
 */
var maximumWealth = function(accounts) {
  return Math.max(...accounts.map(account => account.reduce((sum, n) => sum + n), 0));
};