Recently, I stumbled upon a fantastic chat feature in a Django project using version 2.0. The creator shared their work on Utopian here along with the git repository here. I tried to recreate the project following the given guide but faced challenges when integrating it into my existing app.
My current application utilizes Bootstrap and JavaScript for various functionalities, such as adding items to the cart. However, when adding the new chat feature, I encountered issues. The existing JavaScript functions properly, but the new one doesn't. I received a common error:
Uncaught ReferenceError: $ is not defined
Research on this error pointed out that something is being used before it is defined. Despite having experience in Python, I am a novice in JavaScript and struggling to identify the problem. Upon further inspection of the error, I found the following code snippet:
<script src="https://project.s3.amazonaws.com/static/js/chat.js"></script>
<script>
// For receiving
sender_id = "";
receiver_id = "1";
//For sending
$(function () { <<-- This is where the error is pointing to.
scrolltoend();
$('#chat-box').on('submit', function (event) {
event.preventDefault();
var message = $('#id_message');
send('', '', message.val());
message.val('');
})
})
</script>
</div>
The above code snippet is located at the bottom of an HTML file within the project's directory and references the chat.js file using {% static 'js/chat.js' %}. The new integration includes scripts like 'materialize.js' and 'materialize.min.js', which I am still trying to comprehend.
I suspect that I may be mixing different types of JavaScript, leading to confusion. I am currently at a loss on how to proceed. Any advice or guidance from experienced developers would be greatly appreciated. If additional code snippets are needed for further analysis, please let me know.
Thank you.