Ruby Object#tap alternatives

tap_alternatives.rb

def foo
  puts "something"
end
def bar
  puts "something else"
end
 
#current
def pull
  transaction_successful?.tap do |success|
    begin
      foo
      bar
    end if success
  end
end
 
def pulla
  if transaction_successful?
    foo
    bar
    true
  end
end
 
def pullb
  begin
    foo
    bar
  end if success = transaction_successful?
  success
end
  
def pullc
  if success = transaction_successful?
    foo
    bar
  end
  success
end
 
#false case
def transaction_successful?; false; end # !> previous definition of transaction_successful? was here
pull # => false
pulla # => nil
pullb # => false
pullc # => false
 
#true case
def transaction_successful?; true; end # !> method redefined; discarding old transaction_successful?
pull # => true
pulla # => true
pullb # => true
pullc # => true
 
# >> something
# >> something else
# >> something
# >> something else
# >> something
# >> something else
# >> something
# >> something else