在我的猜测字母函数中,我在单词变量的子字符串和长度方法中遇到错误,因为它说它是未定义的,但它在这里明确定义
var wordsArray = ["monitor", "program", "application", "keyboard", "javascript", "gaming", "network"];
var word;
var goesLeft;
var placeholder;
var input;
var wordLength;
var wordSubstring;
为了解决这个问题,我尝试为 word.Substring 和 word.Length 创建变量并在函数中定义它们的值,但我仍然一无所获
这是猜测字母的功能
function guessLetter()
{
var correct = 0;
var inputBox = document.getElementById("guessinput");
input = inputBox.value;
console.log(word);
for (var count = 0; count < wordLength; count++)
{
if (input == word.substring(count, count + 1))
{
correct++;
placeholder = placeholder.substring(0, count) + input + placeholder.substring(count + 1, placeholder.length + 1);
document.getElementById("placeholder").innerHTML = placeholder;
}
}
if (correct == 0)
{
goesLeft--;
}
var url = document.getElementById("hangimage").src = "http://fetlar.kingston.ac.uk/pp/hangman" + goesLeft + ".jpg";
if (placeholder == word)
{
document.getElementById("hangimage").src = "http://fetlar.kingston.ac.uk/pp/hangman_win.jpg";
alert("You guessed the word correctly.You win!");
}
if (goesLeft == 0)
{
alert("You lose");
newGame();
}
}
错误在这里出现
if (input == word.substring(count, count + 1))
以及定义 for 循环的地方
错误显示“事件期间检测到错误:无法调用未定义的方法‘子字符串’”
有任何想法吗?提前谢谢了