Add commas for numeric format in JavaScript web application

dice-game-webapp/src/Main.hx

@@ -1,3 +1,4 @@
+import js.lib.intl.NumberFormat;
 import js.Browser;
 import js.html.*;
 
@@ -16,10 +17,10 @@ class Main {
 				sum += dice[i]; // add die value to sum
 				var newDice:js.html.DivElement = cast(Browser.document.createElement("div"), js.html.DivElement);
 				newDice.id = 'dice-${i + 1}'; // set id to dice-number to make id's unique
-				newDice.textContent = 'Dice ${i + 1}: ${dice[i]}'; // set text to each die value
+				newDice.textContent = 'Dice ${new NumberFormat().format(i + 1)}: ${dice[i]}'; // set text to each die value
 				appContent.appendChild(newDice); // append dice values to app content
 			}
-			appContent.innerHTML += '\nSum of dice: ${sum}'; // print sum of all dice and append to app content
+			appContent.innerHTML += '\nSum of dice: ${new NumberFormat().format(sum)}'; // print sum of all dice and append to app content
 		}
 	}
 }