a

backend/node_modules/mongoose/lib/helpers/schema/getKeysInSchemaOrder.js

@@ -0,0 +1,28 @@
+'use strict';
+
+const get = require('../get');
+
+module.exports = function getKeysInSchemaOrder(schema, val, path) {
+  const schemaKeys = path != null ? Object.keys(get(schema.tree, path, {})) : Object.keys(schema.tree);
+  const valKeys = new Set(Object.keys(val));
+
+  let keys;
+  if (valKeys.size > 1) {
+    keys = new Set();
+    for (const key of schemaKeys) {
+      if (valKeys.has(key)) {
+        keys.add(key);
+      }
+    }
+    for (const key of valKeys) {
+      if (!keys.has(key)) {
+        keys.add(key);
+      }
+    }
+    keys = Array.from(keys);
+  } else {
+    keys = Array.from(valKeys);
+  }
+
+  return keys;
+};