Ruby method with maximum number of parameters

Question

I have a method, that should accept maximum 2 arguments. Its code is like this:

def method (*args)   if args.length < 3 then     puts args.collect   else     puts "Enter correct number of  arguments"   end end 

Is there more elegant way to specify it?

Answer 1

You have several alternatives, depending on how much you want the method to be verbose and strict.

# force max 2 args def foo(*args)   raise ArgumentError, "Too many arguments" if args.length > 2 end  # silently ignore other args def foo(*args)   one, two = *args   # use local vars one and two end  # let the interpreter do its job def foo(one, two) end  # let the interpreter do its job # with defaults def foo(one, two = "default") end