Add commas for thousand seperator in command line application

dice-game/src/Main.hx

@@ -5,15 +5,28 @@ class Main {
 		rollDice(Sys.stdin()); // get input to roll the dice based on input
 	}
 
+	static function numberWithCommas(number:Int):String {
+		var numString:String = Std.string(number);
+		var numLen:Int = numString.length;
+		var output:String = "";
+		for (i in 0...numLen) {
+			if ((numLen - i) % 3 == 0 && i > 0) {
+				output += ",";
+			}
+			output += numString.charAt(i);
+		}
+		return output;
+	}
+
 	static function rollDice(input:haxe.io.Input):Void {
 		var numberOfDice:Int = Std.parseInt(input.readLine()); // parse input to integer
 		var dice:Array<Int> = []; // initialize empty array of dice
 		var sum:Int = 0; // initialize dice sum to 0
 		for (i in 0...numberOfDice) { // loop to entered number of dice based on input
 			dice[i] = Std.random(6) + 1; // add dice array to rolled die and make dice result is between 1 to 6
 			sum += dice[i]; // add die value to sum
-			trace('Dice ${i + 1}: ${dice[i]}'); // print die roll value
+			trace('Dice ${numberWithCommas(i + 1)}: ${numberWithCommas(dice[i])}'); // print die roll value
 		}
-		trace('Sum of dice: ${sum}'); // print sum of all dice
+		trace('Sum of dice: ${numberWithCommas(sum)}'); // print sum of all dice
 	}
 }