In Java you can easily check your types with "instanceof" - is there an equivalent or other way to proof your types?

You can get the type of an object using obj.typeof. Then you can use type.fits to see if it is instance of another type

The is operator: typeChecking.

And it's better to ask questions on StackOverflow.

And it's better to ask questions on StackOverflow.

Good call!

A response from a recent instanceof forum post sums up what has been said already:

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Try is and isnot - see Type Checking:

69 is Num             // --> true
69 isnot Num          // --> false
(69 as Num) is Float  // --> false

There is also Type.fits() - see fits:

69.typeof.fits(Num#)  // --> true
69.typeof.fits(List#) // --> false