Add to your composer.json those lines

"require": {
    "vtalbot/coffee": "1.*"
}

Run php artisan config:publish vtalbot/coffee

Then edit config.php in app/packages/vtalbot/coffee to your needs.

Add 'VTalbot\Coffee\CoffeeServiceProvider', to providers in app/config/app.php and 'Coffee' => 'VTalbot\Coffee\Facades\Coffee', to aliases in app/config/app.php

<script src="js/test.js"></script>

If js/test.js doesn't exists in the public directory, it will search for test.coffee in app/coffee directory. If found, compile it if needed and return the result.

Coffee::make('file-in-coffee-directory');