When to use static constant and variable in Swift?

Question

There are some posts for how to write code for static constant and static variable in Swift. But it is not clear when to use static constant<

Answer 1

Static constants and variables do belong to the class itself, not to a particular instance. A class can also have static methods that can be called without creating an instance of a class.

So when you have a class MyClass with a static var x, you can also access it through MyClass.x directly. x will be shared among all instances of a class