rock paper scissors

javascript: var playerNum = prompt('Rock, Paper, Or Scissors?\n(1. Rock\n(2. Paper\n(3. Scissiors%27);var computerNum = Math.floor(Math.random() * 3) + 1;switch(playerNum) {    case %271%27:    var playerChoice  = %27Rock%27;    break;  case %272%27:    var playerChoice = %27Paper%27;    break;  case %273%27:    var playerChoice = %27Scissors%27;    break;  default:    alert(%27Input not found. Try inputting the number of your choice (I.E for Rock enter 1%27);    break;}alert(%27Computer is choosing...%27);switch(computerNum) {    case 1:    var computerChoice = %27Rock%27;    break;      case 2:    var computerChoice = %27Paper%27;    break;      case 3:    var computerChoice = %27Scissors%27;    break;}if (playerNum == 1) {  if (computerNum == 1) {    alert(%27Tie!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }  if (computerNum == 2) {    alert(%27You lost!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }  if (computerNum == 3) {    alert(%27You Won!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }}if (playerNum == 2) {  if (computerNum == 1) {    alert(%27You won!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }  if (computerNum == 2) {    alert(%27Tie!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }  if (computerNum == 3) {    alert(%27You lost!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }}    if (playerNum == 3) {  if (computerNum == 1) {    alert(%27You lost!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }  if (computerNum == 2) {    alert(%27You won!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }  if (computerNum == 3) {    alert(%27Tie!\nYou chose %27 + playerChoice + %27 and the computer chose %27 + computerChoice);  }}alert(%27Thank you for playing my bookmarklet game!\nMade by Legend7269\nMy Github: https://github.com/Legend7269/Bookmarklets%27);