Leecode 122. Zuijia timing of buying and selling stocks ②

Vision is limited to the present and the next As long as the stock rises, buy it immediately and then sell it directly , Then look back one space As long as the current is lower than the latter （ Can make money ） Buy and sell immediately This has been making money

var maxProfit = function(prices) {
    
    //  Vision is limited to the present and the next   As long as the stock rises, buy it immediately and then sell it directly , Then look back one space   As long as the current is lower than the latter （ Can make money ） Buy and sell immediately   This has been making money 
    let res = 0
    for(let i =1;i<prices.length;i++){
    
        if(prices[i-1]<prices[i]){
    
            res+=prices[i]-prices[i-1]
        }
    }
    return res
};