javascript - 为什么 ajax beforeSend 在函数成功后继续运行？

Question

调用 ajax 函数没有问题，但是 beforeSend 图像继续运行。我做错了什么？

$tag_link_list = $('#tag_link_list');
current_page = '1';
click_term = '1';
var data = {
    action: 'click_symptom',
    postSearchNonce: MyAjaxSearch.postSearchNonce,
    click_term: click_term,
    p: current_page

};
$.ajax({
    url: MyAjaxSearch.ajaxurl,
    type: 'POST',
    cache: false,
    data: data,
    beforeSend: function() {
        $tag_link_list.html('<i id="tag_entry_spinner" class="fa fa-spinner fa-pulse fa-5x"></i>');

    },
    success: function(data) {
        if (data) {
            $tag_link_list.append(data);
            current_page++
        } else {
            $('#messages_list').html('<center>No result to show.</center>');
        }
    }
}); //ajax

Answer 1

尝试:

success: function(data) {
    if(data) {
        $tag_link_list.html(data);
        current_page++
    } else {
        $tag_link_list.empty();
        $('#messages_list').html('<center>No result to show.</center>');
    }
}