Use typing.TYPE_CHECKING for typehints

1 files changed, 3 insertions, 2 deletions

diff --git a/sphinx/domains/javascript.py b/sphinx/domains/javascript.py
index 734969fc1..037f1048b 100644
--- a/sphinx/domains/javascript.py
+++ b/sphinx/domains/javascript.py
@@ -9,6 +9,8 @@
     :license: BSD, see LICENSE for details.
 """
 
+from typing import TYPE_CHECKING
+
 from docutils import nodes
 from docutils.parsers.rst import Directive, directives
 
@@ -21,8 +23,7 @@ from sphinx.roles import XRefRole
 from sphinx.util.docfields import Field, GroupedField, TypedField
 from sphinx.util.nodes import make_refnode
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from typing import Any, Dict, Iterator, List, Tuple  # NOQA
     from docutils import nodes  # NOQA
     from sphinx.application import Sphinx  # NOQA