From cd5180d5792ef69890654c5ad0bb06f7aca43582 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Tue, 6 Dec 2022 20:24:27 -0800
Subject: [PATCH] Add the second half necessary for functional comments

The server emits the comment back to all clients and the client appends
to a <ul> item (through simple DOM manipulations).
---
 index.html | 10 ++++++++++
 index.js   |  5 ++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/index.html b/index.html
index b7b82de..167c97e 100644
--- a/index.html
+++ b/index.html
@@ -64,6 +64,9 @@
       </form>
     </p>
 
+    <ul id="comments">
+    </ul>
+
     <p>
       <form action="" id="comment-form">
         <input id="comment" type="text" style="width:100%" autocomplete="off" placeholder="Add a comment" />
@@ -107,6 +110,7 @@ mute.addEventListener("click", () => {
   <script>
     var socket = io();
 
+    var comments = document.querySelector("#comments");
     var form = document.querySelector("#comment-form");
     var comment = document.querySelector("#comment");
 
@@ -117,6 +121,12 @@ mute.addEventListener("click", () => {
             comment.value = '';
         }
     });
+
+    socket.on('comment', function(msg) {
+        var item = document.createElement('li');
+        item.textContent = msg;
+        comments.appendChild(item);
+    });
   </script>
 </body>
 </html>
diff --git a/index.js b/index.js
index 3ffea3d..27b3714 100644
--- a/index.js
+++ b/index.js
@@ -11,9 +11,8 @@ app.get('/index.html', (req, res) => {
 });
 
 io.on('connection', (socket) => {
-    console.log('a user connected');
-    socket.on('comment', (comment) => {
-        console.log('comment: ' + comment);
+    socket.on('comment', (msg) => {
+        io.emit('comment', msg);
     });
 });
 
-- 
2.43.0