How to pass unkown length of parameters into a class method

ruby-talk
1

#!/usr/bin/ruby
class Example
  def Examplemethod(var1)
     puts var1
  end
end

Check = Example.new
Check.Examplemethod("Loftz")

Hey guys

So this is just calling a method that prints out a name. Im just
wondering can i specify that there may be mulitple parameters going into
this method

for example
Check.Example("Loftz","peter","john","paul","gary")

and have that method inside the class Example not know how many
parameters are going to be passed into it?

  def Examplemethod(?)

Regards
Loftz

···

--
Posted via http://www.ruby-forum.com/.

2

def Example(*args)
  args.each do |arg|
     # Process individual argument
  end
end

Jason

···

On Dec 18, 2007 7:16 AM, Peter Loftus <loftuz@gmail.com> wrote:

#!/usr/bin/ruby
class Example
def Examplemethod(var1)
    puts var1
end
end

Check = Example.new
Check.Examplemethod("Loftz")

Hey guys

So this is just calling a method that prints out a name. Im just
wondering can i specify that there may be mulitple parameters going into
this method

for example
Check.Example("Loftz","peter","john","paul","gary")

and have that method inside the class Example not know how many
parameters are going to be passed into it?

def Examplemethod(?)

Regards
Loftz
--
Posted via http://www.ruby-forum.com/\.

3

Just to elaborate a little on Jason's point, for those who are
interested in what this code is doing, it is based on Ruby's extremely
cool array assignment feature. This is explained here:

http://phrogz.net/ProgrammingRuby/tut_expressions.html#parallelassignment

and applies to parameter assignment in method invocations as well, as
Jason pointed out:

http://phrogz.net/ProgrammingRuby/tut_methods.html#variablelengthargumentlists

That is to say, that variable argument lists in Ruby is actually using
nested assignment, which you can use anywhere, not just in method
definitions.

Best of luck,
-Dan

···

---
http://dev.zeraweb.com/

On Dec 18, 4:33 am, Jason Roelofs <jameskil...@gmail.com> wrote:

[Note: parts of this message were removed to make it a legal post.]

def Example(*args)
  args.each do |arg|
     # Process individual argument
  end
end

Jason

On Dec 18, 2007 7:16 AM, Peter Loftus <lof...@gmail.com> wrote:

> #!/usr/bin/ruby
> class Example
> def Examplemethod(var1)
> puts var1
> end
> end

> Check = Example.new
> Check.Examplemethod("Loftz")

> Hey guys

> So this is just calling a method that prints out a name. Im just
> wondering can i specify that there may be mulitple parameters going into
> this method

> for example
> Check.Example("Loftz","peter","john","paul","gary")

> and have that method inside the class Example not know how many
> parameters are going to be passed into it?

> def Examplemethod(?)

> Regards
> Loftz
> --
> Posted viahttp://www.ruby-forum.com/.