diff --git a/demo/simple/src/test-path/index.ts b/demo/simple/src/test-path/index.ts
new file mode 100644
index 0000000..a34bee9
--- /dev/null
+++ b/demo/simple/src/test-path/index.ts
@@ -0,0 +1,13 @@
+import { pathToRegexp } from 'path-to-regexp';
+// import { match } from 'path-to-regexp';
+
+const pattern = pathToRegexp('/users/*splat');
+const match = pattern.regexp.exec('/users/123/j/d/f');
+console.log(match);
+// const pattern = pathToRegexp('/users/:id');
+// const match = pattern.regexp.exec('/users/123');
+// console.log(match);
+// const pattern = '/a/b/*splat';
+// const matchPath = match(pattern);
+// console.log(matchPath('/a/b/c'));
+