perf:优化应用数据配置

base-manager-ui/admin/src/pages/basicset/appmarket/modal/AddField.vue

@@ -136,15 +136,12 @@ export default {
         try {
           let Obj = JSON.parse(value);
           let isjson =
-            typeof Obj == "object" &&
             Object.prototype.toString.call(Obj).toLowerCase() ==
-              "[object object]" &&
-            Object.keys(Obj).length;
-          !value.length;
+              "[object object]" && Object.keys(Obj).length;
           if (isjson) {
             callback();
           } else {
-            callback(new Error("输入的JSON对象格式"));
+            callback(new Error("请输入JSON对象格式"));
           }
         } catch (err) {
           callback(new Error("输入的JSON数据格式有误"));