我無法更改占位符文本的語言。我只能更改普通按鈕文本、標題文本的語言，但我不能更改占位符文本的語言。請幫助建議我需要在我的代碼中添加的任何內容。謝謝
<!DOCTYPE html>
<html>
<head>
<title>Node.js app</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link rel="stylesheet" href="Style.css" />
<script src="https://kit.fontawesome.com/a076d05399.js"></script>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
</head>
<body>
<label class="switch">
<input type="checkbox" id="togBtn">
<div class="slider round">
<span language='myanmar' class="on">MYN</span>
<span language='english' class="off">ENG</span>
</div>
</label>
<div class="form-group">
<input type="text" class="form-control usrplaceholder" placeholder="Username" required="required">
</div>
<div class="form-group">
<input type="password" class="form-control pwplaceholder" name="pw" placeholder="Password" required="required">
</div>
<script>
document.querySelector('#togBtn').addEventListener('input', (event) => {
document.querySelector('.usrplaceholder').textContent = data[event.currentTarget.checked ? 'myanmar' : 'english'].usrplaceholder;
document.querySelector('.pwplaceholder').textContent = data[event.currentTarget.checked ? 'myanmar' : 'english'].pwplaceholder;
});
var data = {
"english": {
"usrplaceholder": "Username",
"pwplaceholder": "Password"
},
"japanese": {
"usrplaceholder": "??????????????",
"pwplaceholder": "????????",
}
}
</script>
</body>
</html>
uj5u.com熱心網友回復：
你的代碼有兩個問題。
首先，您嘗試在物件不存在時訪問它的myanmar屬性。data至少在示例代碼中，唯一的屬性為english和japanese。
其次，input元素沒有textContent屬性。從背景關系來看，您似乎正在嘗試設定placeholder屬性。
document.querySelector('#togBtn').addEventListener('input', (event) => {
document.querySelector('.usrplaceholder').placeholder = data[event.currentTarget.checked ? 'japanese' : 'english'].usrplaceholder;
document.querySelector('.pwplaceholder').placeholder = data[event.currentTarget.checked ? 'japanese' : 'english'].pwplaceholder;
});
var data = {
"english": {
"usrplaceholder": "Username",
"pwplaceholder": "Password"
},
"japanese": {
"usrplaceholder": "??????????????",
"pwplaceholder": "????????",
}
}<script src="https://kit.fontawesome.com/a076d05399.js"></script>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<label class="switch">
<input type="checkbox" id="togBtn">
<div class="slider round">
<span language='myanmar' class="on">MYN</span>
<span language='english' class="off">ENG</span>
</div>
</label>
<div class="form-group">
<input type="text" class="form-control usrplaceholder" placeholder="Username" required="required">
</div>
<div class="form-group">
<input type="password" class="form-control pwplaceholder" name="pw" placeholder="Password" required="required">
</div>轉載請註明出處，本文鏈接：https://www.uj5u.com/qiye/416908.html
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