diff --git a/app/src/main/java/io/legado/app/help/JsExtensions.kt b/app/src/main/java/io/legado/app/help/JsExtensions.kt
index 0897a5989..90ec06c55 100644
--- a/app/src/main/java/io/legado/app/help/JsExtensions.kt
+++ b/app/src/main/java/io/legado/app/help/JsExtensions.kt
@@ -490,6 +490,17 @@ interface JsExtensions {
         return msg
     }
 
+    /**
+     * 输出对象类型
+     */
+    fun logType(any: Any?) {
+        if (any == null) {
+            log("null")
+        } else {
+            log(any.javaClass.name)
+        }
+    }
+
     /**
      * 生成UUID
      */