JavaScript/jQuery - “$ is not defined- $function()” error

Question

I am trying to run a JavaScript/jQuery function and Firebug gets the error:

$ is not defined $(function()\".

The JavaScript code is placed

Answer 1

Try:

(function($) {
    $(function() {
        $('.update').live('change', function() {
            formObject.run($(this));
        });
    });
})(jQuery);

By using this way you ensure the global variable jQuery will be bound to the "$" inside the closure. Just make sure jQuery is properly loaded into the page by inserting:

Replace "http://code.jquery.com/jquery-1.7.1.min.js" to the path where your jQuery source is located within the page context.