fork download
copy 
  1. object Main {
  2.   def main(args: Array[String]) {
  3.       functionTakingFunction(TestObj1.testFunction _)
  4.       functionTakingFunction(TestObj2.testFunction)
  5.   } 
  6.  
  7.   def functionTakingFunction(callback: () => String) {
  8.     println(callback)
  9.     println("Call returns: " + callback())
  10.   } 
  11. }
  12.  
  13. object TestObj1 {
  14.   def testFunction = "Some text"
  15. }
  16.  
  17. object TestObj2 {
  18.   def testFunction() = "Some text"
  19. }
Success #stdin #stdout 0.37s 382976KB
comments (?)
stdin
copy 
http://stackoverflow.com/questions/18338636/why-in-scala-function-defined-without-empty-parentheses-doesnt-behave-like-func
stdout
copy 
<function0>
Call returns: Some text
<function0>
Call returns: Some text
https://ideone.com/Hwo1Bq
language:
Scala (scala 2.12.8)
created:
12 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!