chore(examples): fix examples for v5 (#2938)

examples/transaction-with-arbitrary-commands.js

@@ -1,6 +1,6 @@
-// How to mix and match supported commands that have named functions with 
+// How to mix and match supported commands that have named functions with
 // commands sent as arbitrary strings in the same transaction context.
-// Use this when working with new Redis commands that haven't been added to 
+// Use this when working with new Redis commands that haven't been added to
 // node-redis yet, or when working with commands that have been added to Redis
 // by modules other than those directly supported by node-redis.
 
@@ -23,18 +23,29 @@ await client.sendCommand(['hset', 'hash2', 'number', '3']);
 // In a transaction context, use addCommand to send arbitrary commands.
 // addCommand can be mixed and matched with named command functions as
 // shown.
-const responses = await client
-  .multi()
+const multi = client.multi()
   .hGetAll('hash2')
   .addCommand(['hset', 'hash3', 'number', '4'])
-  .hGet('hash3', 'number')
-  .exec();
+  .hGet('hash3', 'number');
+
+// exec() returns Array<ReplyUnion>
+const responses = await multi.exec();
 
 // responses will be:
 // [ [Object: null prototype] { name: 'hash2', number: '3' }, 0, '4' ]
-console.log(responses);
+console.log('Using exec():', responses);
+
+// This is equivalent to multi.exec<'typed'>()
+const typedResponses = await multi
+  .hGetAll('hash2')
+  .addCommand(['hset', 'hash3', 'number', '4'])
+  .hGet('hash3', 'number')
+  .execTyped();
+
+// typedResponses will have more specific types
+console.log('Using execTyped():', typedResponses);
 
 // Clean up fixtures.
 await client.del(['hash1', 'hash2', 'hash3']);
 
-client.destroy();
+client.close();