rambdax/src/nth.js

Extended version of Rambda - a lightweight, faster alternative to Ramda

export function nth(index, list){
  if (arguments.length === 1) return _list => nth(index, _list)

  const idx = index < 0 ? list.length + index : index

  return Object.prototype.toString.call(list) === '[object String]' ?
    list.charAt(idx) :
    list[ idx ]
}