What Are Macros?

A way to extend a class without inheritance
Defined as a simple closure with as many arguments as you need
Decouples additional functionality from the framework
Available on any Laravel class that uses the Macroable trait

<?php

namespace App\Providers;

use Illuminate\Support\Facades\Response;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    public function boot()
    {
        Response::macro('caps', function ($value) {
            return Response::make(strtoupper($value));
        });
    }
}

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