Laravel 5.5 ReferenceError: $ is not defined

问题

For some reason my jQuery refuses to load. I am getting an error:

ReferenceError: $ is not defined

My template is in views/layouts/editor.blade.php and I am loading jQuery in the head of my template like this

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

I can see that jQuery is loaded in my console. but still I get the error.

I am compiling my javascript using laravel mix and my webpack.mix.js file looks like this:

// javascript
mix.js('resources/assets/js/app.js', 'public/js')
   .js('node_modules/jquery/dist/jquery.min.js', 'public/js')
   .autoload({
        jquery: ['$', 'window.jQuery', 'jQuery'],
    });
// css
mix.sass('resources/assets/sass/app.scss', 'public/css')
   .sass('node_modules/bootstrap/scss/bootstrap.scss', 'public/css');

Why is this happening?

EDIT:

My template file looks like this:

<!DOCTYPE html>
<html lang="{{ app()->getLocale() }}">
    <head>

        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <!-- CSRF Token -->
        <meta name="csrf-token" content="{{ csrf_token() }}">
        <title>{{ config('app.name', 'Laravel') }}</title>
        <!-- Styles -->
        <link href="{{ asset('css/bootstrap.css') }}" rel="stylesheet">
        <link href="{{ asset('css/app.css') }}" rel="stylesheet">
        <!-- scripts -->
        <script src="{{ asset('js/jquery.min.js') }}"></script>

        <script>
            $(function(){
                alert();
            });
        </script>

    </head>
    <body>


        @yield('content')

        <!-- Scripts -->

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

    </body>
</html>

If I look in my console I see the following

If I open the jquery.min.js file in a new tab I see the following:

So it's jquery underneath all that webpack boilerplate stuff.

I have also run npm run production which removes all that webpack stuff and leaves the raw jquery.

回答1:

Try this. In your view file create a section under content section

@section('scripts')

<script src="{{ asset('js/jquery.min.js') }}"></script>
<script>
       $(function(){
            alert();
        });
</script>
<script src="{{ asset('js/app.js') }}"></script>

@endsection

Then @yield('scripts') just under the @yield('content') in your template file. So its looks like

    <body>

        @yield('content')

        <!-- Scripts -->

       @yield('scripts')

    </body>

回答2:

Use mix.combine() instead mix.js() :

mix.combine([
    'node_modules/jquery/dist/jquery.js',
    'node_modules/bootstrap/dist/js/bootstrap.min.js'
],'public/js/outputFile.js');

回答3:

The problem is that I was compiling my jquery from the node_modules/jquery/dist folder instead of the /src folder.

来源：https://stackoverflow.com/questions/46939027/laravel-5-5-referenceerror-is-not-defined

标签

php

jquery

laravel

laravel-5

laravel-mix