fill (JavaScript Array Method)

const tnwNames = ["Aye Aye", "Nwe Nwe", "Hla Hla", "Mya Mya", "Soe Soe", "Moe Moe"];

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

function tnwFun2(){
    const result = tnwNames.fill("Aung Aung", 1, 3);
    document.getElementById("demo").innerHTML = result.join("
"); 
}