我试图从输入中获取值，并通过脚本传递它来注册用户，但没有运气来存储它。我设置为测试的警报没有显示任何值。这是我必须获取用户名的值并将其传递到脚本中的原因：
<form id ="form-signin" class="form-signin" action="" method="">
<input type="text" id="username" class="form-control" placeholder="Username" required autofocus>
<input type="email" class="form-control" placeholder="Email" required autofocus>
<input type="password" class="form-control" placeholder="Password" required>
<input type="submit" id="createUser" class="btn btn-lg btn-default btn-block" value="Sign Up" />
</form>
<script type="text/javascript">
Parse.initialize("u3BTp3Efoko8hbNhl5MCeli8Kd2iiEk8mE4vYgn4", "tQEGymAWeB8Tr2LA3YDGoq2Lt2xpGMW9ikeFSTtD");
//get the input data
var username = $('#username').val();
//set the user
var user = new Parse.User();
$( "form" ).submit(function( event ) {
alert( "Error: " + username + " " );
user.set("username", " " + username + " ");
user.set("password", "my pass");
user.set("email", "[email protected]");
// other fields can be set just like with Parse.Object
user.set("phone", "415-392-0202");
user.signUp(null, {
success: function(user) {
// Hooray! Let them use the app now.
},
error: function(user, error) {
// Show the error message somewhere and let the user try again.
alert("Error: " + error.code + " " + error.message);
}
});
});
</script>
您需要在提交处理程序中读取username的值。
#username当页面加载为空白时，您正在读取该字段的值，一旦读取该值并将其分配给变量，则在更新输入值时该变量值将不会更新。
//dom ready handler
jQuery(function ($) {
Parse.initialize("u3BTp3Efoko8hbNhl5MCeli8Kd2iiEk8mE4vYgn4", "tQEGymAWeB8Tr2LA3YDGoq2Lt2xpGMW9ikeFSTtD");
//set the user
var user = new Parse.User();
$("form").submit(function (event) {
//get the input data
var username = $('#username').val();//read the user value in s
alert("Error: " + username + " ");
user.set("username", " " + username + " ");
user.set("password", "my pass");
user.set("email", "[email protected]");
// other fields can be set just like with Parse.Object
user.set("phone", "415-392-0202");
user.signUp(null, {
success: function (user) {
// Hooray! Let them use the app now.
},
error: function (user, error) {
// Show the error message somewhere and let the user try again.
alert("Error: " + error.code + " " + error.message);
}
});
});
})
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