[LeetCode][JavaScript]Best Time to Buy and Sell Stock II

 1 /**
 2  * @param {number[]} prices
 3  * @return {number}
 4  */
 5 var maxProfit = function(prices) {
 6     var min = Infinity;
 7     var max = -Infinity;
 8     var res = 0;
 9     for(var i = 0; i < prices.length; i++){
10         if(!isFinite(max) && prices[i] < min){
11             min = prices[i];
12         }else if(isFinite(min) && prices[i] >= max){
13             max = prices[i];
14         }else if(isFinite(min) && prices[i] < max){
15             res += max - min;
16             min = prices[i];
17             max = -Infinity;
18         }
19     }
20     if(max > min){
21         res += max - min;
22     }
23     return res;
24 };