使用jQuery在几个级别上查找父div的数据属性值

Question

I am trying to access the nearest div from the anchor tag that has a data-id attribute.

.parent().parent().parent() works but I am really trying to avoid doing that.

<div class="panel panel-default" data-id="@customer.Id">
        <div class="panel-heading clearfix">
            @customer.Name
            <div class="pull-right">
                <a class="btn btn-sm btn-default js-deleteCustomer" href="#" title="Delete">
                    <i class="fa fa-trash" aria-hidden="true"></i>
                </a>
        </div>
</div>

I tried the following:

var customerId = $(this).closest("div:has(*[data-id])").attr('data-id');

Answer 1

You want

var customerId = $(this).closest("div[data-id]").attr('data-id');

:has(*[data-id]) doesn't match an element with that attribute. It matches an element that contains another element with that attribute. The element that's matched probably doesn't have this same attribute, which would explain why :has(*[data-id]) doesn't work. For instance, it would match the outer div, not the inner div, in the following:

<div>
  <div data-id="@customer.Id"></div>
</div>

To match an element that has an attribute, simply attach the attribute selector directly without using :has() .