I have the following problem with javascript 
And this is the code
$(function(){
$.post("../php/cargar_marcas.php", function(data){
$("#marca").html(data);
});
});The truth is that I have always done it, the php script works correctly, but I do not know why it is marking me an error in the first line, I have done other functions as well and it is not a problem, I would greatly appreciate your help.
have you added Jquery? it's not like that, include it in the head as well and wing script tag erase some things leave it like this <script src = "../js/marcas.js"></script>
<!DOCTYPE html>
<html lang = "es">
<head>
<meta charset = "UTF-8">
<title></title>
<link rel="stylesheet" href="../css/plantilla_gral.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src = "../js/marcas.js"></script>