diff --git a/1-js/05-data-types/09-destructuring-assignment/article.md b/1-js/05-data-types/09-destructuring-assignment/article.md
index 7a48c89d..29443d89 100644
--- a/1-js/05-data-types/09-destructuring-assignment/article.md
+++ b/1-js/05-data-types/09-destructuring-assignment/article.md
@@ -128,6 +128,7 @@ alert(name1); // Julius
 alert(name2); // Caesar
 
 *!*
+// Note that type of `rest` is Array.
 alert(rest[0]); // Consul
 alert(rest[1]); // of the Roman Republic
 alert(rest.length); // 2