所以我的问题是这个。我有一些"验证"在我的电子邮件和复选框上检查它们是否为空。这似乎工作,但在他们填写并检查后,我仍然收到我的警告消息(.error)弹出窗口,表单不提交。
我之前只使用过电子邮件,但需要添加协议复选框。
以下是代码和jsfiddle。
感谢您的帮助!
HTML:
<form class="form" action="">
<div class="wrapper-input email">
<input id="email" type="text" name="email" placeholder="youremailaddress@example.com" />
<button class="form-submit submit">Sign-Up</button>
<div class="clear"></div>
</div>
<div class="clear"></div>
<div class="wrapper-input">
<input type="checkbox" id="terms" name="terms" value="Agree"> <span>Click to agree</span>
</div> </form> <div class="modal">
<div class="modal-title">
<h4 class="success">Submission Successful!</h4>
<h4 class="error">Submission Error!</h4>
<img class="close" src="img/close-x.png" alt="close" />
</div>
<div class="modal-content">
<p class="success">Sucess</p>
<p class="error">Error!</p>
</div> </div>
的javascript:
$(document).ready(function() {
$(".submit").click(function() {
var email = $("#email").val();
var dataString = 'email='+ email;
var terms = $("input:checkbox#terms").val();
if (!terms.checked) {
$('.lk-modal').show();
$('.success').hide();
$('.error').show();
}
if (email ==='') {
$('.lk-modal').show();
$('.success').hide();
$('.error').show();
}
else {
$.ajax({
type: "POST",
url: "collect.php",
data: dataString,
success: function(){
$('.lk-modal').show();
$('.success').show();
$('.error').hide();
}
});
}
return false;
});
});
答案 0 :(得分:3)
编辑:请先查看Stefano Dalpiaz的回答,因为他指出了您的错误。
要检查字符串是否为空,您需要做的就是if ( !email )
(How do you check for an empty string in JavaScript?)。您还可以使用.is(':checked')
来确定是否选中了复选框。
这是一个工作小提琴:http://jsfiddle.net/p28am/1/
HTML:
<form class="form" action="">
<div class="wrapper-input email">
<input id="email" type="text" name="email" placeholder="youremailaddress@example.com" />
<button class="form-submit submit">Sign-Up</button>
<div class="clear"></div>
</div>
<div class="clear"></div>
<div class="wrapper-input">
<input type="checkbox" id="terms" name="terms" value="Agree"> <span>Click to agree</span>
</div>
</form>
<div class="modal">
<div class="modal-title">
<h4 class="success">Submission Successful!</h4>
<h4 class="error">Submission Error!</h4>
<img class="close" src="img/close-x.png" alt="close" />
</div>
<div class="modal-content">
<p class="success">Sucess</p>
<p class="error">Error!</p>
</div>
</div>
JS:
$(document).ready(function () {
$(".submit").click(function () {
var email = $("#email").val();
var dataString = 'email=' + email;
var terms = $("input:checkbox#terms").is(':checked');
if (!email || !terms) {
$('.modal').show();
$('.success').hide();
$('.error').show();
} else {
$.ajax({
type: "/echo/json/",
url: "collect.php",
data: dataString,
success: function () {
$('.modal').show();
$('.success').show();
$('.error').hide();
}
});
}
return false;
});
});
$('.close').click(function(e){
e.preventDefault();
$('.modal').hide();
});
答案 1 :(得分:2)
您的代码有一些错误。对于复选框,您正在检查其值的.checked
属性,复选框的值是一个字符串。在检查电子邮件之前,我还添加了else
语句。没有它,即使您没有选中复选框,也会发送请求。这是更新版本:
$(document).ready(function () {
$(".submit").click(function () {
var email = $("#email").val();
var dataString = 'email=' + email;
var terms = $("input:checkbox#terms");
if (!terms.is(":checked")) {
$('.modal').show();
$('.success').hide();
$('.error').show();
}
else if (email === '') {
$('.modal').show();
$('.success').hide();
$('.error').show();
} else {
$.ajax({
type: "/echo/json/",
url: "collect.php",
data: dataString,
success: function () {
$('.modal').show();
$('.success').show();
$('.error').hide();
}
});
}
return false;
});
});
这是JsFiddle。