在不加载login.PHP的情况下,如何使用jQuery来检查文本字段是否为空？
<form action="login.PHP" method="post"> <label>Login Name:</label> <input type="text" name="email" id="log" /> <label>Password:</label> <input type="password" name="password" id="pwd" /> <input type="submit" name="submit" value="Login" /> </form>
谢谢.
解决方法
你可以这样做：
// Bind the event handler to the "submit" JavaScript event
$('form').submit(function () {
// Get the Login Name value and trim it
var name = $.trim($('#log').val());
// Check if empty of not
if (name === '') {
alert('Text-field is empty.');
return false;
}
});
