12345678910111213141516171819202122232425262728293031323334353637383940414243
import { _isArray } from './_internals/_isArray'import { _keys } from './_internals/_keys'
export function mapArray(  fn, list, isIndexed = false){  let index = 0  const willReturn = Array(list.length)
  while (index < list.length){    willReturn[ index ] = isIndexed ? fn(list[ index ], index) : fn(list[ index ])
    index++  }
  return willReturn}
export function mapObject(fn, obj){  let index = 0  const keys = _keys(obj)  const len = keys.length  const willReturn = {}
  while (index < len){    const key = keys[ index ]    willReturn[ key ] = fn(      obj[ key ], key, obj    )    index++  }
  return willReturn}
export function map(fn, list){  if (arguments.length === 1) return _list => map(fn, _list)  if (list === undefined) return []  if (_isArray(list)) return mapArray(fn, list)
  return mapObject(fn, list)}