Uncaught TypeError: $(…).value is not a function when trying to send a value via JQuery

Answer 1

There is no function named value in jquery.

{ chat_message: $('#m').value() }

It should be -

$('#m').val()

Answer 2

$('#messages').load('send.php', { chat_message: $('#m').val() });

Answer 3

Use this script on you page.

<script>
  var $ = jQuery.noConflict();
</script>