优化：综合浏览前端事件监听中判断逻辑调整为严格模式

shandan-browser/src/main/resources/static/js/meta_search.js

@@ -195,7 +195,7 @@ layui.use(['dropdown', 'gtable', 'laydate', 'form'], function () {
             let id = $(this).data('id');
             $condition_list.find(`li[id="li_${id}"]`).remove();
             $condition_list.find(`li:first a[name="${LOGIC_JOIN}"]`).addClass("layui-hide").data('value', 'and');
-            if ($condition_list.find('li').length == 0) {
+            if ($condition_list.find('li').length === 0) {
                 $condition_list.find('p.condition-none').removeClass('layui-hide');
             }
         });