fnes_3_map_2.js

const map = curry2((f, coll) =>
  coll instanceof Function ?
    (..._) => f(coll(..._))
  :
  coll instanceof Promise ?
    coll.then(f)
  :
  coll instanceof Map ?
    reduce((m, [k, v]) => then(val => m.set(k, val), f(v)), new Map, coll.entries())
  :
  hasIter(coll) ?
    reduce((arr, v) => then(v=> (arr.push(v), arr), f(v)), [], coll)
  :
  isObject(coll) ?
    reduce((o, [k, v]) => then(v => (o[k] = v, o), f(v)), {}, ObjIter.entries(coll))
  :
  [] // else
);