keys = ["1", "2", "3", "4", "5"]
vals = ["a", "b", "c", "d", "e", "f", "g"]

I want h = {"1"=>"a", "2"=>"b", "3"=>"c", "4"=>"d", "5"=>"e"}

right now I do it by:
  for i in 0..keys.size-1
    h[keys[i]]=vals[i]
  end

is there a ruby way, more slick way of doing this? Thanks.