how to load js and css scripts all at once in Laravel?

You should just need to install npm with command:

 npm install 

then make sure your package.json has laravel mix in the dependencies. Then run the command:

npm run dev

This will run you webpack.mix.js file, in your root directory, which you can compile js, scss, sass, css, vue components from your resources/assets/ directory.

You webpack.mix.js may look like this:

const { mix } = require('laravel-mix');

/*
 |--------------------------------------------------------------------------
 | Mix Asset Management
 |--------------------------------------------------------------------------
 |
 | Mix provides a clean, fluent API for defining some Webpack build steps
 | for your Laravel application. By default, we are compiling the Sass
 | file for the application as well as bundling up all the JS files.
 |
 */

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

mix.scripts([
    'resources/assets/js/enum_gender_select.js',
    'resources/assets/js/enum_title_select.js'
], 'public/assets/js/enum_select.js');


mix.sass('resources/assets/sass/app.scss', '../resources/assets/css/sass.css');

mix.styles([
    'resources/assets/css/app.css',
    'resources/assets/css/sass.css'
], 'public/assets/css/all.css');

Then your resources will be placed in the public\ or where ever you place them. Then you can reference them in your html views like so:

styles:

<link href="{{ asset('assets/css/all.css') }}" rel="stylesheet">

scripts:

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

Try it.

You can just pass the path to the style sheet .

{!! HTML::style('css/style.css') !!}

You can just pass the path to the javascript.

{!! HTML::script('js/script.js'); !!}

Add the following lines in the require section of composer.json file and run composer update "illuminate/html": "5.*".

Register the service provider in config/app.php by adding the following value into the providers array:

'Illuminate\Html\HtmlServiceProvider'

Register facades by adding these two lines in the aliases array:

'Form'=> 'Illuminate\Html\FormFacade', 'HTML'=> 'Illuminate\Html\HtmlFacade'

Refer this url : How to include External CSS and JS file in Laravel 5

OR

adding css and js file in laravel 5.3