javascript - 为什么我的 "Rock Paper Scissors"程序无法运行并且不断使我的页面崩溃？

Question

我的“剪刀石头布”作业也要求我使用非常具体的直径。它根本不起作用。该页面甚至不会加载，而不是出现任何记录的控制台。

我最初将控制台中的所有字符串作为在页面上弹出的警报，但这不起作用，所以我只是将其切换到控制台，希望如果我使用节点它会弹出，但这也没有不工作。我在播放器和计算机的胜利之间移动，进出功能，看看这是否会改变任何东西，但它没有。

var hands = ['Rock', 'Paper', 'Scissors'];

function getHand(){
        return hands[parseInt(Math.random()*hands.length)%3];
}

var player1 = "Mike";
console.log("Hello " + player1);

var player2;
console.log("Player 2 is the computer!");

//var playWins = 0;
//var compWins = 0;

function playRound(){

    if (hand == computer){
        console.log("You guys tied!");

    } else if (hand == "Scissors" && computer == "Rock"){
        console.log(player1 + " has lost! Sadddd...");
        compWins++;
    } else if (hand == "Paper" && computer == "Rock"){
        console.log(player1 + " has wonnnn!!! Yay! I guess...");
        playWins++

    } else if (hand == "Rock" && computer == "Scissors"){
        console.log(player1 + " has wonnnn!!! Yay! I guess...");
        playWins++;
    } else if (hand == "Paper" && computer == "Scissors"){
        console.log(player1 + + " has lost! Sadddd...");
        compWins++;

    } else if (hand == "Rock" && computer == "Paper"){
        console.log(player1 + + " has lost! Sadddd...");
        compWins++;
    } else if (hand == "Paper" && computer == "Paper"){
        console.log(player1 + " has wonnnn!!! Yay! I guess...");
        playWins++;
    } else {console.log("There seems to be a problem.");}
}


hand = [];
computer = [];


while (hand <= 3 || computer <= 3){
    for (i = 0; i >=5; i++ ){
    hand.push(getHand());
    computer.push(getHand());

    playRound();
    }
}

if(playWins>compWins){
    console.log(player1 + " Wins!");
} else {
    console.log("Computer Wins!");
}

我希望它能告诉我谁赢得了每场比赛，然后谁在至少 5 场比赛后获胜。我看不到错误消息，因为该页面甚至无法完全加载。

Answer 1

你有一个无限循环。一些错误导致了这种情况的发生。首先，这些是数组:

while (hand <= 3 || computer <= 3)

所以我猜您想检查它们的长度？:

while (hand.length <= 3 || computer.length <= 3)

那么你这里也有一个逻辑错误:

for (i = 0; i >=5; i++ ){

自 i开头为 0 ，它立即不>= 5 ，所以for永远不会进入循环，while循环只是无限重复。您可能想要<= :

for (i = 0; i <= 5; i++ ){

您还需要取消注释这些变量，以便定义变量，因为稍后您将使用这些变量:

var playWins = 0;
var compWins = 0;