Added rock paper scissors in JS

rockPaperScissors.js

@@ -0,0 +1,70 @@
+const message = document.querySelector('.message');
+const score = document.querySelector('.score');
+const winnerScores = [0,0];
+
+function playGame(e) {
+    //setup player selection
+    let playerSelection = window.prompt("Please choose any one: Rock, Paper, Scissors", "Rock");
+
+    //setup random number selection for computer
+    //number between 0 and 1 is selected(1 not included)
+    let computerSelection = Math.random();
+
+    if (computerSelection < .34) {
+        computerSelection = 'Rock';
+    } else if (computerSelection <= .67) {
+        computerSelection = 'Paper';
+    } else {
+        computerSelection = 'Scissors';
+    }
+
+    //function to compare values and get result
+    let result = checkWinner(playerSelection, computerSelection);
+
+    if (result === 'Player') {
+        winnerScores[0]++;
+    }
+    if (result === 'Computer') {
+        winnerScores[1]++;
+    }
+
+    //output score into Score DIV
+    score.innerHTML = 'Player: [ ' + winnerScores[0]+ ' ] Computer: [ ' + winnerScores[1] + ' ]';
+
+    //output player and computer's selections
+    messenger('Player: <strong>' + playerSelection + '</strong> Computer: <strong>' + computerSelection + '</strong><br>' + result);
+}
+
+function messenger(selectionMessage) {
+    message.innerHTML = selectionMessage;
+}
+
+function checkWinner(player, computer) {
+    if (player === computer) {
+        return 'Draw';
+    }
+
+    if (player === 'Rock') {
+        if (computer === 'Paper') {
+            return 'Computer';
+        } else {
+            return 'Player';
+        }
+    }
+
+    if (player === 'Paper') {
+        if (computer === 'Rock') {
+            return 'Player';
+        } else {
+            return 'Computer';
+        }
+    }
+
+    if (player === 'Scissors') {
+        if (computer === 'Rock') {
+            return 'Computer';
+        } else {
+            return 'Player';
+        }
+    }
+}