const getIn = (state, path) => {
  if (!state) {
    return state
  }

  const length = path.length
  if (!length) {
    return undefined
  }

  let result = state
  for (let i = 0; i < length && !!result; ++i) {
    result = result[path[i]]
  }

  return result
}

const merge = (state,paylod) => ({...state, ...payload})

getIn(state, ['router', 'location'])