Console error "Uncaught ReferenceError: $ is not defined"

Question

Here is my script code:

<script src="//code.jquery.com/jquery.js" defer></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js" defer></script>
<script src="//cdn.datatables.net/1.10.7/js/jquery.dataTables.min.js" defer></script>

I try to create an ajax function, but it show some error in console :

Uncaught ReferenceError: $ is not defined

How can I proceed?

@palaѕн i tried to delete one of that, but still got the same error. — mrobbizulfikar, Feb 23 '20 at 07:05
Probably a duplicate of [Uncaught ReferenceError: $ is not defined?](https://stackoverflow.com/questions/2075337/uncaught-referenceerror-is-not-defined) — halfer, Mar 01 '20 at 15:45

Mart Macion · Accepted Answer · 2020-02-23T07:36:33.143

2

Your file can't be found. Try to replace your code from your current code to this.

<script src="http://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="http://cdn.datatables.net/1.10.7/js/jquery.dataTables.min.js"></script>

edited Feb 23 '20 at 07:36

answered Feb 23 '20 at 07:22

Mart Macion

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still error sir – mrobbizulfikar Feb 23 '20 at 07:28
have you already removed this ``?? – Mart Macion Feb 23 '20 at 07:29
Also, make sure to disable your cache – Mart Macion Feb 23 '20 at 07:31
yes i already deleted that – mrobbizulfikar Feb 23 '20 at 07:31
Try to remove `defer`. In addition, you can refer to this: https://stackoverflow.com/questions/2194992/jquery-is-not-defined – Mart Macion Feb 23 '20 at 07:33
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I already updated the script tag above. Try it again. – Mart Macion Feb 23 '20 at 07:36
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done, thanks all, refers to mart macion – mrobbizulfikar Feb 23 '20 at 07:48

score 0 · Answer 2 · answered Feb 23 '20 at 07:07

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This error means your jQuery file has not been loaded. Based on your code, you have to remove one of the script tags that load the jQuery library. Then check that the path for loading jQuery is correct. You can do that by viewing the page source (in most browsers ctrl+u) and clicking on the script address and check if the file loads correctly.

answered Feb 23 '20 at 07:07

Rouhollah Mazarei

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the link is working perfectly, but still error – mrobbizulfikar Feb 23 '20 at 07:29

Console error "Uncaught ReferenceError: $ is not defined"

2 Answers2