6.js

$ = function(parameters) { 
  var state = {}
  state.nodeList = document.querySelectorAll(parameters)
  state.dom = [].slice.call(state.nodeList)
  return {
    left: function(){
      console.log(state.dom, “turning left”)
      return this
    },
    right: function(){
      console.log(state.dom, “turning right”)
      return this
    }
  }
}