stockPicker.js

function stockPicker(arr) {
    // console.log(arr, "log risyandi: data array");
    let maxProfit = -1;
    for (let index = 0; index < arr.length; index++) {
        for (let jindex = index + 1; jindex < arr.length; jindex++) {
            let profit = arr[jindex] - arr[index]
            console.log(profit, "log risyandi: profit");
            if (profit > maxProfit) {
                maxProfit = profit
                // console.log(maxProfit, "log risyandi: maxProfit");
            }
        }
    }
    console.log(maxProfit, "log risyandi: maxProfit result");
    return maxProfit;
}

// input: 
// let arrayVal = [10, 12, 4, 5, 9]; 
// output: 5

// input: 
// let arrayVal = [14, 20, 4, 12, 5, 11]; 
// output: 8

// input
let arrayVal = [44, 30, 24, 32, 35, 30, 40, 38, 15]; 
// output: 16
stockPicker(arrayVal);