How to use django template engine in js code?

Question

JavaScript

I wrote my first chat in django + wb, I need the name of the user who sent it to be displayed next to the message. The js syntax does not allow the use of a template engine, and if somehow perverted, it still does not work.
js:

var a = '{{ request.user }}';

webSocket.onmessage = function(e) {
    const data = JSON.parse(e.data);
    chat.innerHTML += '<div style="color:red" class="msg">' + a + 'Сообщение от автора <br>' + data.message + '</div>'
};

What it looks like:

That is, it simply does not accept data from the back, it does not work.
How can this be implemented so that the name of the current user who sent the message would be displayed? Thank you.

Answer 1

This should be specified in the template, not in the script file.

<script>
  var a = '{{ request.user }}';
</script>