Ruby. How is the case equality method implemented in the class Class?

Is there any special Reason why the === and the == methods are implemented differently in the class Class?

>> "".class == String
=> true
>> "".class === String
=> false

>Solution :

We can further simplify your question I think.
I believe you are asking is why

String == String # true

But

String === String # false

I think it’s semi consistent by Ruby. the === equality asks if right side is a member of the left side.

So

Class === String

Is true since String is a member of Class. And indeed String is not a member of String.

What I do find weird though is that

5 === 5 # returns true

Imo it should return false to be consistent with String === String returning false, but for primitives Ruby has this quirk, probably so it works well with case statements.