javascript中的岩纸剪刀游戏无法正常工作？

Question

我需要使用表单，因此userChoice是输入，而computerChoice是输出。我的代码只能在提示中使用，但不能在表单中使用此外，我需要再次播放代码，因为它要求用户再次播放，但它不会重新加载游戏，你能帮忙吗？         

        var userChoice = prompt("Do you choose Rock, Paper or Scissors?");
        var computerChoice = Math.random();
        if (computerChoice < 0.34) {
            computerChoice = "rock";
        } else if(computerChoice <= 0.67) {
            computerChoice = "paper";
        } else {
            computerChoice = "scissors";
        } console.log("Computer: " + computerChoice);


        do{
        choice1 = userChoice;
        choice2 = computerChoice;

        function compare(choice1, choice2){
            if(choice1===choice2){
                return ('The result is a tie!');
            }
            if(choice1==="rock"){
                if(choice2==="scissors"){   
                    return('Rock wins!');
                }else{
                    return('Paper wins!');
                }    
            }
            if(choice1==="paper"){
                if(choice2==="rock"){   
                    return('paper wins!');
                }else{
                    return('Scissors wins!');
                }    
            }
            if(choice1==="scissors"){
                if(choice2==="rock"){   
                    return('Rock wins!');
                }else{
                    return('Scissors wins!');
                }    
            }
        }

        console.log(compare(userChoice,computerChoice));
        alert(compare(userChoice,computerChoice));
        //do something usefull...
        }while(prompt("Play again? (Y/N) Or just click the Rock Paper Scissors tab")=Y);

    </script>