the filter expression is a bit trickier a couple of addition kotlinlang #language-proposals

the filter expression is a bit trickier. a couple ...

kirillrakhman

12/22/2016, 9:16 AM

the filter expression is a bit trickier. a couple of additions to the stdlib like the following were previously proposed:

Copy code

inline fun <T> T.assuming(condition: (T) -> Boolean) = if (condition(this)) this else null

then you can write

Copy code

nullableString?.length?.assuming { it <= 10 }