reverse (JavaScript Array Method)

const tnwNums = [20, 30, 40, 50, 60, 70];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwNums.join("
");
}

function tnwFun2(){
    let result = tnwNums.reverse();
    document.getElementById("demo").innerHTML = result.join("
");
}