The similarities and differences between Ruby Proc and Lambda

What Proc and Lambda have in common:

• Similar syntax
  proc.new{|n| N**2}
  
  lambda{|n| N**2}
  
  
• Can be called with the. Call method
  
  Hello_proc = proc.new{puts "hello!"}
  Hello_proc.call #Hello!
  Hello_lambda = lambda{puts "hello!"}
  Hello_lambda.call #Hello!
  
  
• can be converted to block with & keyword
  Nums = [1,3,4,5,6]
  Cube_proc = proc.new{|n| n**3}
  Cube_nums_proc = Nums.map (&cube_proc) #[1,27,64 ...]
  
  Cube_lambda = lambda{|n| n**3}
  Cube_nums_lambda = Nums.map (&CUBE_LAMBDA) #[1,27,64 ...]
  
  
• Both are object

The difference between Proc and lambda:

1. Lambda checks the parameters passed in, and if an incorrect argument is passed, throw an error; Proc does not check, even if an incorrect parameter is passed, it is ignored, and nil is assigned to the result (assign to any of that is nil missing.).
2. When the lambda returns, the control is returned to its calling function, and proc is not exchanged.
   
   

   def Batman_ironman_proc
   Victor = proc.new {return "Batman'll win!"}
   Victor.call
   "Iron man would win!"
   End

   Puts Batman_ironman_proc

   def BATMAN_IRONMAN_LAMBDA
   Victor = lambda {return "Batman'll win!"}
   Victor.call
   "Iron man would win!"
   End

   Puts Batman_ironman_lambda
   
   Output = = = = = "Batman'll win!
   Iron man would win!

The similarities and differences between Ruby Proc and Lambda