Where is the $slot of a component defined?

If you define a component, and use it like this;

<x-button>
	Press to explode kittens
</x-button>

then 'Press to ...' becomes the $slot variable, then in the component can be used as {{ $slot }}

If you'd like to get into the technicalities of it:

https://github.com/laravel/framework/blob/8.x/src/Illuminate/View/Concerns/ManagesComponents.php#L115

Thabks for thw replies, I am just wondering, why the $slot ist available for the blade engine. In the ManagesComponents is 'only' a function, which is called slot() but no public var. Maybe it is a basic question, but, if the $slot = ManagesComponents::slot() how is this been made?

I just want to understand the mechanics behind it xD

the {{ $slot }} just give a way without assign a variable to render the content

here below two component are the same

<x-button test="something" />

is same as

<x-button>
	<x-slot name="test">
		something
	</x-slot>
</x-button>

so if $test content any html or logic code, the second component is more readable

Yeah I know that @newbie360 I just want to understand, how $slot and the name slots are made accessible in the component. When you look into the components class, then you find there the $attributes var defined, but I miss the definition of slot and transistion of hte named x-slot into a available var.