我正在做一个命运之轮游戏，从数组中随机选择一个单词。我在游戏功能下方创建了一个函数，以检测屏幕上从 A-Z 显示的字母列表中按下的键。我的问题是，在按下 playGame(( 按钮后触发 randomWord(( 函数之前，我无法让游戏检测到按下的键。我正在尝试让用户在 buttonPress(( 函数中按下的字母以匹配 wordChoice.length 循环中的字母，并在屏幕上显示 _ 的位置，然后在使用后排除该字母。我尝试创建 letterClicked 变量并使其全局化，以便我的 playGame(( 函数可以访问它，但我没有任何运气将用户选择的字母与播放按钮上方显示框中的字母匹配。我在这里做错了什么？我尝试在整个 randomWord(( 函数中进行控制台日志记录，但只有在您单击播放并基本上重置游戏后才会检测到按键。这是我下面的代码。感谢您的帮助！
<DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Wheel of Fortune</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="main.css">
</head>
<body>
<body>
<div id="container">
<div id="header">
<p class="welcome">Welcome to Wheel of Fortune!</p>
<!-- The letters will be tied to the number of letters in the random array -->
<p class="letters">There are <span id="numbers">0</span> letters in this word</p>
<!-- The user will be given a number of choices and with each wrong choice, they lose a turn -->
<p class="lives">You have <span id="guesses">0</span> guesses left</p>
<span id="words"></span><br>
<button id="play" onclick="playGame()">Play</button>
</div>
<div id="alphabet" onclick="buttonPress(event)">
<button>A</button>
<button>B</button>
<button>C</button>
<button>D</button>
<button>E</button>
<button>F</button>
<button>G</button>
<button>H</button>
<button>I</button>
<button>J</button>
<button>K</button>
<button>L</button>
<button>M</button>
<br>
<button>N</button>
<button>O</button>
<button>P</button>
<button>Q</button>
<button>R</button>
<button>S</button>
<button>T</button>
<button>U</button>
<button>V</button>
<button>W</button>
<button>X</button>
<button>Y</button>
<button>Z</button>
</div>
<span id="your-guess">You guessed </span>
</div>
<script src="main.js"></script>
</body>
</html>
body {
margin: 0 auto;
width: 1000px;
font-size: 20px;
background: url("http://res.cloudinary.com/angelrodriguez/image/upload/c_crop,h_624/v1534810805/wheeloffortune.jpg");
background-size: cover;
color: white;
}
#header {
margin: 20px;
}
#alphabet {
margin: 20px;
}
button {
border: 2px solid blue;
font-size: 20px;
}
#words {
font-size: 30px;
margin: 10px;
letter-spacing: 20px;
}
#play {
margin: 20px;
}
// 3. Quit the game if the player wants to.
// 5. Keep track of letters the player has guessed.
// 6. Show the player their progress.
// 7. Finish when the player has guessed the word.
// Create global variables
let gameOver = false;
var guessesLeft = 6;
var letterClicked;
var wordArray = ["JAVASCRIPT", "ARRAYS", "FUNCTIONS", "HOISTING", "RECURSION", "EVENTS", "KEYUP", "TERNARY"];
// 1. Pick a random word.
//Start a new game
function playGame() {
newGame.addEventListener("click", function() {
//fire the randomWord function to generate a new word
randomWord();
})
}
// Pass the letter event from buttonPress into the randomWord function
function randomWord(letter) {
var answerList = [];
// console.log(answerList);
// letterGuessed = "";
console.log(letterClicked);
var wordChoice = wordArray[Math.floor(Math.random() * wordArray.length)];tbw
var wordSplit = wordChoice.split('');
// console.log(wordSplit);
for (var i = 0; i < wordSplit.length; i++) {
answerList[i] = "_";
}
// if the letter is in the word
// Update the players progress with the guess
for (var z = 0; z < wordChoice.length; z++) {
if (wordChoice[z] === letterClicked) {
letterClicked = answerList[i];
// answerList[i].innerHTML = letterGuessed;
}
}
//Display underscores on page representing each word in the random word
wordDisplay.innerHTML = answerList;
//Display number of letters in the random word on the page
var remainingLetters = wordChoice.length;
letterCount.innerHTML = "The word is " + remainingLetters +
" letters long";
}
// 2. Take the player’s guess.
function buttonPress(e) {
letterClicked = e.target.textContent;
document.getElementById("your-guess").innerHTML = "You guessed the letter " + letterClicked;
//fix issue with clicking divs
}
// If the player wants to quite the game {
// Quit the game
// }
// Grab elements
var numbers = document.querySelector("#numbers");
var guesses = document.querySelector("#guesses");
var wordDisplay = document.querySelector("#words");
var letterCount = document.querySelector(".letters");
var newGame = document.querySelector("#play");
var letterBoxes = document.querySelector("#alphabet");
要获得buttonPress字母，您可以使用e.toElement.textContent.
我做了一些解决方案，但我认为这不是一个很好的例子。
let words = [ "TERNARY"], guessesLeft, chosenWord;
let getRandomWord = words => {
return words[Math.floor(Math.random()*words.length)];
}, updateGuesses = count => {
guesses.innerText = count;
guessesLeft = count;
}, updateWords = word => {
document.getElementById('words').innerHTML = word;
}, hideAlphabet = () => alphabet.style.display = 'none',
setGameStatus = status => document.getElementById("status").innerHTML = status;
play.addEventListener('click', e => {
e.target.style.display = 'none'; // hide when game started.
alphabet.style.display = 'block';
chosenWord = getRandomWord(words);
updateGuesses(chosenWord.length);
updateWords(String("*").repeat(chosenWord.length))
});
alphabet.addEventListener('click', e => {
let letter = e.toElement.textContent;
e.toElement.disabled = true;
if (!new RegExp(letter).test(chosenWord)) {
updateGuesses(guessesLeft -1);
} else {
let newString = document.getElementById('words').innerHTML.split(''), indexesOfALetter = [];
for(let i = 0; i < chosenWord.length; i += 1) // here for is a fastest way.
if (chosenWord[i] === letter) indexesOfALetter.push(i);
indexesOfALetter.forEach(i => newString[i] = letter);
updateWords(newString.join(''));
}
if (!/*/.test(document.getElementById('words').innerHTML)) {
hideAlphabet();
setGameStatus("Congratulations! You won that game");
}
if (guessesLeft < 1) {
hideAlphabet();
setGameStatus("Unfortunately, you lost the game ;(");
updateWords(chosenWord);
}
});body {
margin: 0 auto;
width: 1000px;
font-size: 20px;
color: black;
}
#header {
margin: 20px;
}
#alphabet {
display: none;
margin: 20px;
}
button {
border: 2px solid blue;
font-size: 20px;
}
#words {
font-size: 30px;
margin: 10px;
letter-spacing: 20px;
}
#play {
margin: 20px;
}<div id="container">
<div id="header">
<p class="welcome">Welcome to Wheel of Fortune!</p>
<!-- The user will be given a number of choices and with each wrong choice, they lose a turn -->
<p class="lives">You have <span id="guesses">0</span> guesses left</p>
<span id="words"></span><br>
<button id="play">Play</button>
</div>
<div id="alphabet">
<button>A</button>
<button>B</button>
<button>C</button>
<button>D</button>
<button>E</button>
<button>F</button>
<button>G</button>
<button>H</button>
<button>I</button>
<button>J</button>
<button>K</button>
<button>L</button>
<button>M</button>
<br>
<button>N</button>
<button>O</button>
<button>P</button>
<button>Q</button>
<button>R</button>
<button>S</button>
<button>T</button>
<button>U</button>
<button>V</button>
<button>W</button>
<button>X</button>
<button>Y</button>
<button>Z</button>
</div>
<span id="status"></span>
</div>