Javascript 如何运行在不同函数中定义的代码
我有一些代码在页面加载时从数组中生成一个随机值Javascript 如何运行在不同函数中定义的代码,javascript,arrays,function,Javascript,Arrays,Function,我有一些代码在页面加载时从数组中生成一个随机值 window.onload = startGame; function startGame() { document.getElementById("startGame").onclick = startHangman; document.getElementById("checkLetter").onclick = checkLetter; var hangmanWord = "";
window.onload = startGame;
function startGame() {
document.getElementById("startGame").onclick = startHangman;
document.getElementById("checkLetter").onclick = checkLetter;
var hangmanWord = "";
var words = ["APPLE", "COMPUTER", "BEDSHEET", "CASTE", "WATER", "LANTERN", "COFFE", "PROGRAMMER", "PILLOW", "CHEDDARCHIPOTLE POTETGULL"];
var hangmanWord = words[Math.floor(Math.random() * words.length)];
console.log(hangmanWord);
}
我还有一个函数,用于检查输入值是否包含在页面加载时生成的随机值中
function checkLetter() {
var letter = document.getElementById("letter").value.toUpperCase();
for (var i = 0; i < hangmanWord.length; i++) {
if (hangmanWord[i] === letter) {
console.log(hangmanWord[i]);
var printLetter = document.createElement("p");
var displayLetter = document.createTextNode(letter);
printLetter.appendChild(displayLetter);
document.getElementById("printLetter").appendChild(displayLetter);
}
}
函数checkLetter(){
var letter=document.getElementById(“letter”).value.toUpperCase();
for(变量i=0;i
我怎样才能做到这一点?我必须使用某种函数参数吗?使hangman成为一个全局变量,即更改
window.onload = startGame;
function startGame() {
document.getElementById("startGame").onclick = startHangman;
document.getElementById("checkLetter").onclick = checkLetter;
var hangmanWord = "";
var words = ["APPLE", "COMPUTER", "BEDSHEET", "CASTE", "WATER", "LANTERN", "COFFE", "PROGRAMMER", "PILLOW", "CHEDDARCHIPOTLE POTETGULL"];
var hangmanWord = words[Math.floor(Math.random() * words.length)];
console.log(hangmanWord);
}
到
使hangman成为一个全局变量
window.onload = startGame;
function startGame() {
document.getElementById("startGame").onclick = startHangman;
document.getElementById("checkLetter").onclick = checkLetter;
var hangmanWord = "";
var words = ["APPLE", "COMPUTER", "BEDSHEET", "CASTE", "WATER", "LANTERN", "COFFE", "PROGRAMMER", "PILLOW", "CHEDDARCHIPOTLE POTETGULL"];
var hangmanWord = words[Math.floor(Math.random() * words.length)];
console.log(hangmanWord);
}
到
你可以把
hangmanWord
作为一个全局变量,而不是局部作用于你的startGame
函数。好吧,为什么我没有想到这一点呢..非常感谢。它很有效:)你可以把hangmanWord
作为一个全局变量,而不是局部作用于你的startGame
函数。好吧,为什么我没有想到这一点..谢谢ot.It work:)这样做,checkLetter函数将只返回:“”这样,checkLetter函数将只返回:“”