I have an external Javascript file initialize_database.js that uses JQuery to call a PHP script to create a database and some tables. I've tested my PHP script by adding some HTML to it to run it on its own, and it works fine. My HTML is as follows: 
<!DOCTYPE html>
<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
        <title>Test Webpage</title>
    </head>
    <body>
        <script src="initialize_database.js"></script>
        <div>
            <h2>Nothing here yet!</h2>
        </div>
    </body>
</html>
Here is initialize_database.js:
$(document).ready(function() {
    $.get('testPhp.php' {
        alert('Databases were initialized');
    });
});
I'd like to have the Javascript run as soon as the page loads so that the database can be created right away. All files are in the same directory. What am I doing wrong?