baggage.js

function baggage(input) {
    let index = 0;
    let freeSpace = Number(input[index]);
    index++;
    let command = input[index];
    index++;
    let luggage = 0;
    let counter = 0;
    let enoughtSpaceLeft = true;

    while (command !== "End") {
        let suitCaseSpace = Number(command);
        luggage++;

        if (luggage % 3 === 0 && counter !== 0) {
            suitCaseSpace = suitCaseSpace + (suitCaseSpace * 0.10);
        }

        if (suitCaseSpace > freeSpace) {
            enoughtSpaceLeft = false;
            console.log("No more space!");
            console.log(`Statistic: ${counter} suitcases loaded.`);
            break;
        }

        counter++;
        freeSpace -= suitCaseSpace;

        command = input[index];
        index++;
    }

    if (enoughtSpaceLeft) {
        console.log("Congratulations! All suitcases are loaded!");
        console.log(`Statistic: ${counter} suitcases loaded.`);
    }
}

baggage(["550", "100", "252", "72", "End"]);
baggage(["700.5", "180", "340.6", "126", "220"]);
baggage(["1200.2", "260", "380.5", "125.6", "305", "End"]);