Getting props in CoffeeScript/ES6 with _ (_it) Proxy

get_prop_it_proxy.coffee

global._ = global._it = new Proxy {},
  get: (_, prop) ->
    retrieve = (props...) ->
      fn = (obj) ->
        props.reduce ((obj, prop) -> obj[prop]), obj

      if props.last() in ['is', 'isnt']
        prop = props.pop()
        switch prop
          when 'is' then (val) -> (obj) -> fn(obj) is val
          when 'isnt' then (val) -> (obj) -> fn(obj) isnt val
      else
        new Proxy fn,
          get: (_, prop) -> retrieve(props..., prop)
    retrieve(prop)


objs = [
  { dn: 1, sec: { low: 12 } }
  { dn: 5 , sec: { low: 41 } }
]


console.log objs.map(_.dn)
console.log objs.map(_.sec.low)

console.log objs.find _.sec.low.is 12