我想顯示錯誤消息,如果任何字段留空或在jQuery驗證默認值。當字段留空時,我的下面的代碼工作。但是,如果我將字段保留爲默認值,則不起作用。請任何人都可以幫我解決這個問題。由於如何顯示錯誤消息,如果字段留空或在jQuery驗證中的默認值
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>jQuery Validation Plugin</title>
<script type="text/javascript" src="jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="validation.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#myform').validate({
rules: {
name: {
required: function() {return ($("#name").val()== "Name" || $("#name").val()== "");}
},
password: {
required: function() {return ($("#password").val()== "Password" || $("#password").val()== "");}
}
},
messages: {
name: {
required: "Name required"
},
password: {
required: "Password required"
}
}
});
});
</script>
<style type="text/css">
#myform input.error {
border:1px solid red;
}
</style>
</head>
<body>
<form id="myform" method="post" action="#">
<input type="text" name="name" id="name" value="Name"/>
<br/>
<input type="text" name="password" value="Password" id="password"/>
<br/>
<input type="submit" />
</form>
</body>
</html>