JavaScript - Uncaught SyntaxError: Unexpected token ?

Question

What is wrong with this sample code? o_O

<html>
    <head>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>
        <script type="text/javascript">
            $(document).ready(function(){
                console.log("Testing");
                $('#test').append("Test");
            });
        </script>
        <title>Sin título 4</title>
</head>
<body>

    <div id="test">Hello world.</div>

</body>
</html>

It says that error happens in line 9: `$('#test').append("Test");` — test, Jul 12 '12 at 02:57
Apparently not in my IDE editor... phpDesigner on my localhost.. WAMP. — test, Jul 12 '12 at 03:00
I wouldn't trust any IDE for debugging JavaScript. Trust the browsers. — bfavaretto, Jul 12 '12 at 03:02
Do you get that error with my jsfiddle too? Anyway, you could try this, as per jQuery [docs](http://api.jquery.com/append/#example-1): `$('#test').append(document.createTextNode("Test"));`. — bfavaretto, Jul 12 '12 at 03:04
Works fine for me on the jsfiddle in chrome. Try pasting `$('#test').append("Test");` directly into the chrome console and see what it says. — Jeemusu, Jul 12 '12 at 03:08

score 22 · Accepted Answer · answered Jul 12 '12 at 03:09

22

You have an illegal invisible character at the end of this line...

$('#test').append("Test");// <-- right before this comment

Delete the line entirely, and retype it, or make sure the cursor is after all characters on the line, and hit backspace until you see characters actually being removed.

This happens sometimes if you copy & paste code from jsFiddle.

The charCode of the offending character is 8203.

answered Jul 12 '12 at 03:09

2

How would one go about finding these illegal text characters themselves? – Prusprus Oct 09 '15 at 15:04
2

@Prusprus: Here's a [SO question](http://stackoverflow.com/questions/11554416/how-to-reliably-strip-invisible-characters-that-break-code) that may help. I don't have much better than that to offer. Good luck! – Oct 09 '15 at 17:26

JavaScript - Uncaught SyntaxError: Unexpected token ?

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