What is the difference between

*val* x: String? = y *as* String?

and

*val* x: String? = y *as*? String

?

With

as

, if y cannot be safely cast to

String

it will throw an exception. With

as?

, it will simply return null.

*safely cast to

String?

as String?

Crashes for everything that isn't a

String

or

null

,

as? String

Accepts any value, returns a

String

if it is one,

null

otherwise.

Thanks guys! I understand the distinction now.