STEPS TO REPRODUCE - JICA

function concatenateData([arg1, arg2, arg3, arg4]) {
    let firstName = arg1;
    let lastName = arg2;
    let age = parseInt(arg3);
    let town = arg4;
    console.log(`You are ${firstName} ${lastName}, a ${age}-years old person from ${town}.`)
}

concatenateData(["Светлин", "Наков", 25, "В.Търново"]);