Create rockPaperScissors.js

rockPaperScissors.js

@@ -0,0 +1,57 @@
+const getUserChoice =  userInput => {
+  userInput = userInput.toLowerCase();
+  if(userInput === 'rock'||'paper'||'scissors'){
+    return userInput;
+  } else {
+    console.log('error!');
+  }
+};
+
+
+const getComputerChoice = () => {
+  let num = Math.random()*3;
+  num = Math.floor(num);
+
+  switch(num) {
+    case 0 : return 'rock'; break;
+    case 1 : return 'paper'; break;
+    case 2 : return 'scissors'; break;
+    default : return 'error!'; break;
+  }
+};
+
+const determineWinner = (userChoice, computerChoice) => {
+   if(userChoice === computerChoice){
+     return 'the game was a tie.';
+   }
+   if(userChoice ==='rock'){
+     if(computerChoice==='paper'){
+       return 'the computer won!';
+     } else {
+       return '🎊Congratulations! You won!🎊';
+     }
+   }
+   if(userChoice ==='paper'){
+     if(computerChoice==='scissors'){
+       return 'the computer won!';
+     } else {
+       return '🎊Congratulations! You won!🎊';
+     }
+   }
+   if(userChoice ==='scissors'){
+     if(computerChoice==='rock'){
+       return 'the computer won!';
+     } else {
+       return '🎊Congratulations! You won!🎊';
+     }
+   }
+};
+
+
+const playGame = (userChoice = getUserChoice('rock'),computerChoice = getComputerChoice()) => {
+  console.log(`user = ${userChoice}`);
+  console.log(`computer = ${computerChoice}`);
+  console.log(determineWinner(userChoice,computerChoice));
+};
+
+playGame();