How to check for null or false in Scala concisely?

Question

In Groovy language, it is very simple to check for null or false like:

groovy code:

def some = getSomething()
if(some) {
//         


        

Answer 1

If you use extempore's null-safe coalescing operator, then you could write your str example as

val str = ?:(some)(_.toString)()

It also allows you to chain without worrying about nulls (thus "coalescing"):

val c = ?:(some)(_.toString)(_.length)()

Of course, this answer only addresses the second part of your question.