ruby 2.0 named parameters from a hash

Question

If I have a method in ruby that takes named arguments...

def smoosh(first: nil, second: nil)
    first + second
end

Whats the easiest way to pass a hash to that method if the keys match:

params = { first: 'peanut', second: 'butter' }

smoosh(params)

The above produces an argument error.

Update:

It seems like this might be an issue with how Sinatra parameters work.

When I do:

get 'a_sinatra_route' do
  hash = params.clone
  hash.symbolize_keys!

  smoosh(hash)
end

It works fine. It does not work when just passing the params in by themselves. (even though you can access the individual params with the symbol key params[:attr])

Answer 1

Seems to work just fine for me.

2.0.0p0 :007 > def smoosh(first: nil, second: nil)
2.0.0p0 :008?>   first + second
2.0.0p0 :009?> end
 => nil
2.0.0p0 :010 > params = { first: 'peanut', second: 'butter' }
 => {:first=>"peanut", :second=>"butter"}
2.0.0p0 :012 > smoosh(params)
 => "peanutbutter"