所以我有一个简单的 AJAX post 请求,它按照我的意愿从模型中删除对象,但我很难正确地从 DOM 中删除它。function removeFriend(id){ let dataId = `${id}` $.ajax({ type: 'POST', url: `/delete/friend`, data: { friend_id: `${id}`, csrfmiddlewaretoken: $('input[name=csrfmiddlewaretoken]').val(), action: 'post' }, success: function(json){ let tbody = document.querySelector('tbody'); let row = tbody.querySelector('tr[data-id=dataId]'); console.log(row); row.remove(); alert('friend has been deleted') }, error: function(xhr, errmsg, err) { console.log(error) } })}我不断收到信息index.js:119 Uncaught TypeError: Cannot read property 'remove' of null,console.log(row) 显示为空。我已经尝试过let row = tbody.querySelector('tr[data-id=`${id}`]');并且结果相同。我已经尝试过let row = tbody.querySelectorAll('tr[data-id=dataId]');,但 console.log(row) 的输出是一个空的 NodeList,NodeList []后跟index.js:119 Uncaught TypeError: row.remove is not a function.这就是我的桌子的样子: <table class="table table-striped table-sm" id="my_friends"> <thead> <tr> <th>Nick name</th> <th>First name</th> <th>Last name</th> <th>Likes</th> <th>DOB</th> <th>lives in</th> <th>Remove friend</th> </tr> </thead> <tbody> {% for friend in friends %} <tr data-id="{{ friend.id }}"> <td>{{friend.nick_name}}</td> <td>{{friend.first_name}}</td> <td>{{friend.last_name}}</td> <td>{{friend.likes}}</td> <td>{{friend.dob | date:"Y-m-d"}}</td> <td>{{friend.lives_in}}</td> <td><button type="button" class="remove-friend" name="remove-friend" value="{{ friend.id }}">Remove</button></td> </tr> {% endfor %} </tbody> </table>我知道我肯定已经正确分配了数据属性,因为我可以看到它显示在我的 Chrome 浏览器元素中。
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