fix: check for 'undefined' in place of a falsy value

Author: baileympearson

src/cmap/connection.ts

@@ -583,7 +583,8 @@ export class Connection extends TypedEventEmitter<ConnectionEvents> {
       getMoreCmd.maxTimeMS = options.maxAwaitTimeMS;
     }
 
-    if (options.comment) {
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
       getMoreCmd.comment = options.comment;
     }
 

src/cursor/abstract_cursor.ts

@@ -170,7 +170,8 @@ export abstract class AbstractCursor<
       this[kOptions].batchSize = options.batchSize;
     }
 
-    if (options.comment != null) {
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
       this[kOptions].comment = options.comment;
     }
 

src/operations/aggregate.ts

@@ -131,7 +131,8 @@ export class AggregateOperation<T = Document> extends CommandOperation<T> {
       command.let = options.let;
     }
 
-    if (options.comment) {
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
       command.comment = options.comment;
     }
 

src/operations/delete.ts

@@ -94,7 +94,8 @@ export class DeleteOperation extends CommandOperation<Document> {
       command.let = options.let;
     }
 
-    if (options.comment) {
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
       command.comment = options.comment;
     }
 

src/operations/find.ts

@@ -248,7 +248,8 @@ function makeFindCommand(ns: MongoDBNamespace, filter: Document, options: FindOp
     findCommand.singleBatch = options.singleBatch;
   }
 
-  if (options.comment) {
+  // eslint-disable-next-line no-restricted-syntax
+  if (options.comment !== undefined) {
     findCommand.comment = options.comment;
   }
 

src/operations/find_and_modify.ts

@@ -149,7 +149,8 @@ class FindAndModifyOperation extends CommandOperation<Document> {
       this.cmdBase.let = options.let;
     }
 
-    if (options.comment) {
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
       this.cmdBase.comment = options.comment;
     }
 

src/operations/update.ts

@@ -107,7 +107,8 @@ export class UpdateOperation extends CommandOperation<Document> {
       command.let = options.let;
     }
 
-    if (options.comment) {
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
       command.comment = options.comment;
     }