... 

​

<!-- Start an unoredered list -->

<ul>

​

    <!-- Loop through each category -->

    @foreach ($categories as $category)

​

        <!-- Include subcategories.blade.php file and pass the current category to it -->

        @include('subcategories', ['category' => $category])

    @endforeach

<ul>

​

... 

​

<!-- Displaying the current category -->

<li value="{{ $category->id }}">{{ $category->name}}

​

    <!-- If category has children -->

    @if (count($category->children) > 0)

​

        <!-- Create a nested unordered list -->

        <ul>

​

            <!-- Loop through this category's children -->

            @foreach ($category->children as $sub)

​

                <!-- Call this blade file again (recursive) and pass the current subcategory to it -->

                @include('subcategories', ['category' => $sub])

            @endforeach

        </ul>

    @endif

</li>

​