Uncaught Syntaxerror: Unexpected Token :

Uncaught SyntaxError: Unexpected token :

I have just solved the problem. There was something causing problems with a standard Request call, so this is the code I used instead:

vote.each(function(element){                
  element.addEvent('submit', function(e){
    e.stop();
    new Request.JSON({
      url : e.target.action, 
      onRequest : function(){
        spinner.show();
      },
      onComplete : function(){
        spinner.hide();
      },
      onSuccess : function(resp){
        var j = resp;
        if (!j) return false;
        var restaurant = element.getParent('.restaurant');
        restaurant.getElements('.votes')[0].set('html', j.votes + " vote(s)");
        $$('#restaurants .restaurant').pop().set('html', "Total Votes: " + j.totalvotes);
        buildRestaurantGraphs();
      }
    }).send(this);
  });
});

If anyone knows why the standard Request object was giving me problems I would love to know.

Uncaught SyntaxError: Unexpected token ''

Finally I figured out the error. I was using npm live-server package. When I used live-server provided by vs-code as an extension, the issue is gone.
It's working perfectly fine now.

How to fix 'Uncaught SyntaxError: Unexpected token '

Usually it refers to a response that instead of being a parsable JSON returns (IE) an HTML which opening tag begins with <

ReactJS: Uncaught SyntaxError: Unexpected token

UPDATE --
use this instead:

<script type="text/babel" src="./lander.js"></script>

Add type="text/jsx" as an attribute of the script tag used to include the JavaScript file that must be transformed by JSX Transformer, like that:

<script type="text/jsx" src="./lander.js"></script>

Then you can use MAMP or some other service to host the page on localhost so that all of the inclusions work, as discussed here.

Thanks for all the help everyone!

Yarn on Chrome: Uncaught SyntaxError: Unexpected token

That error typically happens when you are getting a HTML page for a <script> tag src's address.

Open the URLs of the scripts each on a different tab (or check the network tab of the developer tools), those URLs are probably returning a 404 (or some other error code) and a HTML error page.

So your code tries to parse those HTML error pages as JavaScript code, thus yielding that error.

It gets Uncaught SyntaxError: Unexpected token < because it tries to parse the HTML content (e.g. <html> ...) as JavaScript code.

For a demo, run the snippet below and see the error at the console.

<script type=text/javascript src=https://stackoverflow.com></script>Check the console: "Uncaught SyntaxError: Unexpected token <"

JavaScript compilation error: Uncaught SyntaxError: Unexpected token '' in string variable at if condition -- Snowflake

Inside a JavaScript procedure the only valid language to use is Javascript.
Therefore you have to use a javascript "not equals" which is !==

CREATE OR REPLACE PROCEDURE PROC1("param1" nvarchar(100) )
returns varchar
language javascript
AS 
$$

var Fac123 = param1
if (Fac123 !== "" )
{
      sql12 = " AND "
}
return sql12 ;
$$;

now it can be used

call PROC1('blar');

gives:

PROC1
AND