something is working

node_modules/mongoose/lib/helpers/projection/isSubpath.js

@@ -0,0 +1,14 @@
+'use strict';
+
+/**
+ * Determines if `path2` is a subpath of or equal to `path1`
+ *
+ * @param {string} path1
+ * @param {string} path2
+ * @return {Boolean}
+ * @api private
+ */
+
+module.exports = function isSubpath(path1, path2) {
+  return path1 === path2 || path2.startsWith(path1 + '.');
+};