1 files changed, 12 insertions, 7 deletions
diff --git a/cli/js/ops/fs/mkdir.ts b/cli/js/ops/fs/mkdir.ts
index 374a00d83..61ea1c218 100644
--- a/cli/js/ops/fs/mkdir.ts
+++ b/cli/js/ops/fs/mkdir.ts
@@ -1,11 +1,21 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
 import { sendSync, sendAsync } from "../dispatch_json.ts";
 
-type MkdirArgs = { path: string; recursive: boolean; mode?: number };
+export interface MkdirOptions {
+  recursive?: boolean;
+  mode?: number;
+}
+
+interface MkdirArgs {
+  path: string;
+  recursive: boolean;
+  mode?: number;
+}
 
 function mkdirArgs(path: string, options?: MkdirOptions): MkdirArgs {
   const args: MkdirArgs = { path, recursive: false };
-  if (options) {
+  if (options != null) {
     if (typeof options.recursive == "boolean") {
       args.recursive = options.recursive;
     }
@@ -16,11 +26,6 @@ function mkdirArgs(path: string, options?: MkdirOptions): MkdirArgs {
   return args;
 }
 
-export interface MkdirOptions {
-  recursive?: boolean;
-  mode?: number;
-}
-
 export function mkdirSync(path: string, options?: MkdirOptions): void {
   sendSync("op_mkdir", mkdirArgs(path, options));
 }