ruby proc, lambda difference

gistfile1.rb

# proc, lambda difference
# Proc.new/proc  -->  not check parameter, return outside method
# lambda/->      -->  check parameter, return just return lambda

p '------------------'
def test_1
  p 'begin'
  p1 = Proc.new do |x,y| p [x,y]; return end
  p1.call
  p 'end'
end
test_1

p '------------------'
def test_2
  p 'begin'
  p1 = proc do |x,y| p [x,y]; return end
  p1.call
  p 'end'
end
test_2

p '------------------'
def test_3
  p 'begin'
  p1 = lambda do |x,y| p [x,y]; return end
  p1.call 1,2
  p 'end'
end

test_3
p '------------------'
def test_4
  p 'begin'
  p1 = -> { return }
  p1.call
  p 'end'
end
test_4

__END__
"------------------"
"begin"
[nil, nil]
"------------------"
"begin"
[nil, nil]
"------------------"
"begin"
[1, 2]
"end"
"------------------"
"begin"
"end"