我正在尝试创建一个动态联系表单错误检查脚本...一切正常,除了当我尝试更改输入字段正上方的 html 元素的类时...这是我的代码:
<div class="container">
<div class="row">
<div class="col-sm-4">
<h4>Address:</h4>
<address>
<p>
Plot 12<br>
Ogudu Phase 2 <br>
Ogudu Lagos <br>
<a href="mailto:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="dcb1bdaeb7b9a8b5b2bb9cbea9afb5b2b9afafacb0a9afb2bbf2bfb3b1" rel="noreferrer noopener nofollow">[email protected]</a>"><a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="523f33203937263b3c35123027213b3c372121223e27213c357c313d3f" rel="noreferrer noopener nofollow">[email protected]</a></a>
</p>
</address>
</div>
<form method="post" id="contactform" class="form-minimal">
<div class="col-sm-4">
<div class="form-group">
<label for="name">Name</label>
<input type="text" class="form-control" name="name" id="name" placeholder="Enter name" title="Please enter your name (at least 2 characters)"/>
<div class="form-line"></div>
</div>
<div class="form-group">
<label for="email">Email</label>
<input type="email" class="form-control" name="email" id="email" placeholder="Enter email" title="Please enter a valid email address"/>
<div class="form-line"></div>
</div>
<div class="form-group">
<label for="phone">Phone</label>
<input name="phone" class="form-control required digits" type="tel" id="phone" size="30" value="" placeholder="Enter email phone" title="Please enter a valid phone number (at least 10 characters)">
<div class="form-line"></div>
</div>
</div>
<div class="col-sm-4">
<div class="form-group">
<label for="comments">Your Brief</label>
<textarea name="comment" class="form-control" id="comments" cols="3" rows="5" placeholder="Enter your message…" title="Please enter your message (at least 10 characters)"></textarea>
<div class="form-line"></div>
</div>
</div>
<div class="col-md-8 col-md-offset-4">
<button name="submit" type="submit" class="btn large primary" id="submit"> Submit</button>
<div class="result"></div>
</div>
</form>
这是我的 JavaScript 代码
var form = $("#contactform");
var submit= $("#submit");
var name =$("#name");
var email =$("#email");
var comments =$("#comments");
form.submit(function(e) {
e.preventDefault();
if($("input#name").val().length < 10)
{
$(this).parent(".form-group").addClass("has-error");
}
else
{
submit.addClass("disabled").html("Please wait");
$.post("email.php",form.serialize(),"text")
.done(function(data){
submit.removeClass("disabled").html("Mail Sent");
alert(data);
})
.fail(function(data)
{ submit.removeClass("disabled").html("Mail Failed");
});
}
});
所以基本上当我调用 .parent().addClass() 时...它一直到地址列上方的行 div...我如何修复它以直接位于名称输入元素上方(即父表单组div)
非常感谢任何帮助
最佳答案
$(this)
您在表单提交函数中引用的是表单 $("#contactform")
本身,而不是 $("input#name")
。因此$(this).parent()
引用 <div class="row">
.
实现您想要做的事情的一种方法是 $(this).find("input#name").parent(".form-group").addClass("has-error");
关于javascript - Jquery .parent 在 DOM 中走得太远,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40040505/