Laravel 5 WebPack JQuery - $ is not defined

Question

I Have webpack.min.js:

mix.webpackConfig(webpack => {
    return {
        plugins: [
            new webpack.ProvidePlugin({
                $: 'jquery',
                jQuery: 'jquery',
                'window.jQuery': 'jquery',
                Popper: ['popper.js', 'default'],
            })
        ]
    };
});

mix.sass('resources/assets/styles/index.scss', 'public/css/app.css')
    .js('resources/assets/scripts/index.js', 'public/js/app.js')
    .copyDirectory('resources/assets/static', 'public/static')
    .version()
    .sourceMaps();

and package.json:

"devDependencies": {
    "jquery": "^3.3.1",
    "axios": "^0.18.0",
    "bootstrap": "^4.1.3",
    "bootstrap-datepicker": "^1.7.1",
    "browser-sync": "^2.24.6",
    "browser-sync-webpack-plugin": "^2.0.1",
    "chart.js": "^2.7.2",
    "cross-env": "^5.2.0",
    "datatables": "^1.10.18",
    "easy-pie-chart": "^2.1.7",
    "font-awesome": "4.7.0",
    "fullcalendar": "^3.9.0",
    "jquery-sparkline": "^2.4.0",
    "jvectormap": "^2.0.4",
    "laravel-mix": "^2.1.11",
    "load-google-maps-api": "^1.2.0",
    "lodash": "^4.17.10",
    "masonry-layout": "^4.2.2",
    "perfect-scrollbar": "^1.1.0",
    "popper.js": "^1.14.3",
    "skycons": "^1.0.0",
    "vue": "^2.5.16"
  }

and in my blade footer script:

@section('footer')
    <script type="text/javascript">
        if (typeof jQuery != 'undefined') { alert(jQuery.fn.jquery); }

        $(function() {
        $('#cc-number').validateCreditCard(function(result) {
            $('.log').html('Card type: ' + (result.card_type == null ? '-' : result.card_type.name)
                + '<br>Valid: ' + result.valid
                + '<br>Length valid: ' + result.length_valid
                + '<br>Luhn valid: ' + result.luhn_valid);
        });
        });
    </script>
@endsection

after i run npm run dev and load my page, i receive error:

Uncaught ReferenceError: $ is not defined

and my alert(jQuery.fn.jquery); is not triggered

how do i load jquery from npm so then i can use it at inline html code in blade?

score 27 · Answer 1 · edited Apr 14 '19 at 22:03

27

in app.blade.php

<script src="{{ asset('js/app.js') }}" defer></script>

remove defer so make it

<script src="{{ asset('js/app.js') }}" ></script>

https://github.com/laravel/framework/issues/17634#issuecomment-375473990

edited Apr 14 '19 at 22:03

frzsombor

2,274
1
22
40

answered Apr 14 '19 at 18:56

Ahmed Aboud

1,232
16
19

2

What is that `defer` for? – Pathros Aug 22 '19 at 17:34
1

`defer` means that the script will only get loaded when everything else is loaded – O.S.Kaya Aug 13 '20 at 09:37
1

landed here after wasting half a day to find the solution. Thanks, it worked like a charm. – sohal07 May 04 '22 at 08:50

score 23 · Accepted Answer · answered Jul 30 '18 at 14:11

23

Try this in your main.js file

global.$ = global.jQuery = require('jquery');

answered Jul 30 '18 at 14:11

Odyssee

2,393
2
19
38

which main.js file? in here: `resources/assets/scripts/index.js`? – AnD Jul 30 '18 at 14:14
anyway, adding `global.$ = global.jQuery = require('jquery');` in `resources/assets/scripts/index.js` solve the problem - Thanks! – AnD Jul 30 '18 at 14:29
8

For others finding this topic using Laravel 5.8: If you have a `` tag in your `app.blade.php`, just move it to the end of your `body` tag and remove the `defer` statement. This should solve the problem and still work fine with vue.js – Martin Apr 25 '19 at 23:33
^ Underrated solution. I spent HOURS dicking around with adding `windows.$ =...` throughout my JS files, it was still not available in blade. THIS fixed it. – TrueStory May 23 '22 at 09:47

racl101 · Answer 3 · 2019-03-15T21:16:33.603

I had this issue in Laravel 5.7 when I tried using some of the default views that it provided. I was trying to use JavaScript (which required using jQuery) in some blade view templates that extended the default layout/app.blade.php template.

But for me the problem was not the window.$ not being assigned the window.jQuery library, because it was being added as far as the resources/js/bootstrap.js file was concerned. (This is a file that appears to be precompiled into public/js/app.js by Laravel Mix. You can see this is the case by looking into webpack.mix.js, within it, you'll find this statement:

mix.js('resources/js/app.js', 'public/js')

where

resources/js/app.js requires resources/js/bootstrap.js .

If you wish to manually compile this for yourself first run:

npm install then npm run dev when in development mode, or npm run prod when in production mode.

but anyways (I've digressed) ....

It turned out that the issue was here:

resources/views/layouts/app.blade.php

There was an instance of script tag with a defer attribute like so:

<script src="{{ asset('js/app.js') }}" defer></script>

That defer attribute was causing all the problems.

So I removed it like so:

<script src="{{ asset('js/app.js') }}"></script>

and the problem of jQuery not being defined was solved.

I prefer to defer my JavaScript loading by simply moving the script tags closer to the end of body HTML tag anyways.

that `defer` statment seems to be necessary if you use Vue.js. If you just move the ` — Martin, Apr 25 '19 at 23:28
In my case it was causing problems, even if I had already put the script tag at the end of the body. What exactly is that `defer` for? — Pathros, Aug 22 '19 at 17:35

score 3 · Answer 4 · answered Oct 07 '19 at 09:37

3

I use mix.copy instead mix.js for jQuery and it works great!

example:

mix.copy('node_modules/jquery/dist/jquery.min.js', 'public/vendor/jquery/jquery.min.js');

answered Oct 07 '19 at 09:37

Денис Кисель

31
2

Then add `` before `
`
– Konsortium ICT Pantai Timur Oct 04 '20 at 14:59

Laravel 5 WebPack JQuery - $ is not defined

4 Answers4

but anyways (I've digressed) ....

Linked