How do I pass multiple arguments to a ruby method as an array?

Question

I have a method in a rails helper file like this

def table_for(collection, *args)  options = args.extract_options!  ... end 

and I want to be able to call this method like this

args = [:name, :description, :start_date, :end_date] table_for(@things, args) 

so that I can dynamically pass in the arguments based on a form commit. I can't rewrite the method, because I use it in too many places, how else can I do this?

Answer 1

Ruby handles multiple arguments well.

Here is a pretty good example.

def table_for(collection, *args)   p collection: collection, args: args end  table_for("one") #=> {:collection=>"one", :args=>[]}  table_for("one", "two") #=> {:collection=>"one", :args=>["two"]}  table_for "one", "two", "three" #=> {:collection=>"one", :args=>["two", "three"]}  table_for("one", "two", "three") #=> {:collection=>"one", :args=>["two", "three"]}  table_for("one", ["two", "three"]) #=> {:collection=>"one", :args=>[["two", "three"]]} 

(Output cut and pasted from irb)

Answer 2

Just call it this way:

table_for(@things, *args) 

The splat (*) operator will do the job, without having to modify the method.