diff --git a/deno2/js/main.ts b/deno2/js/main.ts
index a41a7dfee3..b34ecf24d5 100644
--- a/deno2/js/main.ts
+++ b/deno2/js/main.ts
@@ -1,7 +1,6 @@
 const globalEval = eval;
 const window = globalEval("this");
-window['foo'] = () => {
+window["foo"] = () => {
   deno_print("Hello world from foo");
   return "foo";
-}
-
+};
diff --git a/deno2/tools/format.sh b/deno2/tools/format.sh
index 25c9f4a892..a5c3241756 100755
--- a/deno2/tools/format.sh
+++ b/deno2/tools/format.sh
@@ -4,3 +4,4 @@ clang-format -i -style Google *.cc *.h include/*.h
 gn format BUILD.gn
 gn format .gn
 yapf -i tools/*.py
+prettier --write js/*.ts js/*.js