index.js

var randomNumber1= Math.floor((Math.random() * 6) + 1);
var randomDiceImage= "dice" + randomNumber1 + ".png";
var randomImageSource= "images/" + randomDiceImage;
var image1= document.querySelectorAll("img")[0];
image1.setAttribute("src",randomImageSource);

var randomNumber2= Math.floor((Math.random() * 6) + 1);
var randomDiceImage2= "dice" + randomNumber2 + ".png";
var randomImageSource2= "images/" + randomDiceImage2;
var image2= document.querySelectorAll("img")[1];
image2.setAttribute("src",randomImageSource2);

if(randomNumber1>randomNumber2)
{
  document.querySelector("h1").innerHTML="🚩 Player 1 wins!";

}
else if(randomNumber1<randomNumber2)
{
  document.querySelector("h1").innerHTML="Player 2 wins! 🚩";

}

else
{
  document.querySelector("h1").innerHTML="It's a draw!";

}