714. 거래 수수료로 주식을 사고 팔기 가장 좋은 시간(자바스크립트 솔루션)

설명:

해결책:

var maxProfit = function(prices, fee) {
        // The max profit we could make
        let profit = 0;
        // Total profit if we bought at the current price
        let hold = -prices[0];
        // Loop through all the days
        for (let i = 1; i < prices.length; i++) {
            // Check if it would be more profitable to hold or sell
            profit = Math.max(profit, hold + prices[i] - fee);
            // Check if it would be more profitable to hold or buy 
            hold = Math.max(hold, profit - prices[i]);
        }
        return profit;
};