clean

Author: HanaPearlman

lib/operations/connect.js

@@ -302,6 +302,7 @@ function connect(mongoClient, url, options, callback) {
       delete _finalOptions.db_options.auth;
     }
 
+    // `journal` should be translated to `j` for the driver
     if (_finalOptions.journal != null) {
       if (_finalOptions.writeConcern == null) _finalOptions.writeConcern = {};
       _finalOptions.writeConcern.j = _finalOptions.journal;
@@ -643,7 +644,7 @@ function createUnifiedOptions(finalOptions, options) {
 
   // Handle write concern keys separately, since `options` may have the keys at the top level or
   // under `options.writeConcern`. The final merged keys will be under `finalOptions.writeConcern`.
-  // `fromOptions` will warn if `options` is using deprecated write concern options
+  // This way, `fromOptions` will warn once if `options` is using deprecated write concern options
   const optionsWriteConcern = WriteConcern.fromOptions(options);
   if (optionsWriteConcern) {
     finalOptions.writeConcern = Object.assign(
@@ -790,7 +791,7 @@ function transformUrlOptions(_object) {
   }
 
   // Any write concern options from the URL will be top-level, so we manually
-  // move them options under `object.writeConcern`
+  // move them options under `object.writeConcern` to avoid warnings later
   const wcKeys = ['w', 'wtimeout', 'j', 'fsync'];
   for (const key of wcKeys) {
     if (object[key] !== undefined) {