javascript - 将循环函数的值存储到变量中，javascript

Question

嘿，我需要你的帮助。在这个石头剪刀布游戏中，获胜者是用户和计算机之间第一个获得五胜的人。虽然我还没有循环这个，但我需要帮助将每次胜利的计数存储到一个变量中，从我的 point() 函数到 var playerPoints = 0 ;或者var compPoints = 0 ;取决于谁赢得了这一轮。如果您有循环建议，请随时向我提出建议!谢谢

    //decalring an array with weapons of choice
    const weaponArray = ["rock", "paper", "scissors"];
    // selects a random index from array to represent computer choice
    const computerChoice = weaponArray[[Math.floor(Math.random() * weaponArray.length)]];
    //prompts user to make a choice of weapon
    const playerPrompt = prompt("Please enter Rock, Paper, or Scissors!");
    //lowers all alphabet input to lower case
    const playerChoice = playerPrompt.toLowerCase();
    
 

    
    //function runs player vs computer choices and determines winner of round
    const round = (computerChoice, playerChoice) => {
      if (playerChoice === "scissors" && computerChoice === "rock" || playerChoice === "rock" && computerChoice === "paper" || playerChoice ==="paper" && computerChoice === "scissors") {
      return "Just Give Up Now Looser!";
    }
      else if (playerChoice === "rock" && computerChoice === "scissors" || playerChoice === "paper" && computerChoice === "rock" || playerChoice==="scissors" && computerChoice === "paper")
      {
      return "You Won This Round!";
    }
    else {
      return "Its a Tie!";
    }
    };
    
    //stores round function value  into a variable 
    var state = round(computerChoice, playerChoice);
   
   
   // adds points to player or computer based on "state" value 
  const points = () => {
    if (state === "You Won This Round!"){
      return playerPoints + 1;
    }
    else if (state === "Just Give Up Now Looser!"){
      return compPoints + 1;
    }
    else{
      return null
    }
    
  };
   
   
    var playerPoints = points()  ;
    var compPoints = points()  ;
   
   
   
 console.log(state);
 console.log(points());
 //console.log(compPoints);
 //console.log(playerPoints);

Answer 1

不妨在这里添加我的答案。我不会使用提示方法，而是使用按钮。将分数存储在一个对象中，并使用条件来检查某人在每场比赛后是否达到了 5 分:

const userScore = document.querySelector('.user .score')
const computerScore = document.querySelector('.computer .score')
const resultContainer = document.querySelector('.result')
const userThrowContainer = document.querySelector('.userThrow')
const opponentThrowContainer = document.querySelector('.opponentThrow')
const buttons = document.querySelectorAll('button')

const score = {
  user: 0,
  computer: 0
}

function rpsMatch(userThrow) {
  // Define possible throws
  const throwOptions = [
    'rock',
    'paper',
    'scissors'
  ]
  
  // Choose randomly from array of throws
  let opponentThrow = throwOptions[Math.floor(Math.random() * throwOptions.length)]
  
  // Print user and computer throws
  userThrowContainer.innerText = `You threw ${userThrow}`
  opponentThrowContainer.innerText = `Computer threw ${opponentThrow}`
  
  function userWins() {
    resultContainer.innerText = 'You win'
    score.user++
    updateScores()
  }
  
  function computerWins() {
    resultContainer.innerText = 'You lose'
    score.computer++
    updateScores()
  }
  
  function updateScores() {
    userScore.innerText = score.user
    computerScore.innerText = score.computer
  }
  
  function resetScore() {
    userScore.innerText = 0
    computerScore.innerText = 0
    score.user = 0
    score.computer = 0
  }
  
  // RPS logic
  if (userThrow == opponentThrow) {
    resultContainer.innerText = 'You tied'
  } else {
    if (userThrow == 'rock') {
      opponentThrow == 'scissors' ? userWins() : computerWins()
    } else if (userThrow == 'paper') {
      opponentThrow == 'rock' ? userWins() : computerWins()
    } else {
      opponentThrow == 'paper' ? userWins() : computerWins()
    }
  }
  
  if (score.user === 5) {
    alert('You won the first to 5!')
    resetScore()
  }
  
  if (score.computer === 5) {
    alert('You lost the first to 5!')
    resetScore()
  }
}

// Attach event handlers to each button
buttons.forEach(button => {
  button.addEventListener('click', e => {
    // Assign data attribute to variable
    let userThrow = e.target.dataset.type
    e.preventDefault()
    // Pass user selection to rpsMatch
    rpsMatch(userThrow)
  })
})

<div class="user">User Score: <span class="score">0</span></div>
<div class="computer">Computer Score: <span class="score">0</span></div>
<button data-type="rock">Rock</button>
<button data-type="paper">Paper</button>
<button data-type="scissors">Scissors</button>
<div class="userThrow"></div>
<div class="opponentThrow"></div>
<div class="result"></div>