fork download
copy 
  1. class Command
  2.     def foo(arg)
  3.         puts "#{arg}: foo"
  4.         arg == 1 ? nil : self
  5.     end
  6.  
  7.     def bar(arg)
  8.         puts "#{arg}: bar"
  9.         arg == 2 ? nil : self
  10.     end
  11.  
  12.     def baz(arg)
  13.         puts "#{arg}: baz"
  14.         arg == 3 ? nil : self
  15.     end
  16. end
  17.  
  18.  
  19. command = Command.new()
  20. [0,1,2,3,4].each do |x|
  21.     command.foo(x)&.bar(x)&.baz(x)
  22. end
  23.  
Success #stdin #stdout 0.01s 6432KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0: foo
0: bar
0: baz
1: foo
2: foo
2: bar
3: foo
3: bar
3: baz
4: foo
4: bar
4: baz
https://ideone.com/I7hyOs
language:
Ruby (ruby 2.5.5)
created:
4 years ago
visibility:
public

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!