WaldoJeffers

import { compose, head, split, get } from 'conductor'

const character = {name: 'Luke Skywalker'}
const getFirstName = compose(head, split(' '), get('name'))
getFirstName(character) // 'Luke'

WaldoJeffers

import { map } from 'conductor'

const add1 = x => x + 1
const mapByAdding1 = map(add1) // == collection => map(add1, collection)
mapByAdding1([1, 2, 3]) // [2, 3, 4]
mapByAdding1([2, 0, 3]) // [3, 1, 4]

WaldoJeffers

import { map } from 'conductor'

const numbers = [1, 2, 3]
const add1 = x => x + 1
map(add1)(numbers) // == map(add1, numbers) == [2, 3, 4]

WaldoJeffers

import { filter } from 'conductor'

const obj = { books: 10, ruler: 1, pencils: 5 }
const isEven = x => x % 2 === 0
filter(isEven, obj) // { books: 10 }

WaldoJeffers

import { compose, equals, filter, get } from 'conductor'

const character_ids = [1, 2, 3, 4, 5]
const fetchCharacter = id => fetch(`https://swapi.co/api/people/${id}`).then(res => res.json())
const hasBlueEyes = compose(equals('blue'), get('eye_color'), fetchCharacter))
await filter(hasBlueEyes, characters_ids) // [{ name: 'Luke Skywalker }, { name: 'Owen Lars' }, ...]

WaldoJeffers

import { map } from 'conductor'

const character_ids = [1, 2, 3, 4, 5]
const fetchCharacter = id => fetch(`https://swapi.co/api/people/${id}`).then(res => res.json())
await map(fetchCharacter, characters_ids) // [{ name: 'Luke Skywalker }, { name: 'C-3PO' }, ...]

WaldoJeffers

import { reduce } from 'conductor'

const homeworld_stats = reduce(reducer, character_ids)
// { Alderaan: 1, Naboo: 1, Stewjon: 1, Tatooine: 7 }

WaldoJeffers

const reducer = (acc, character_id) => getHomeworldName(character_id)
  .then(mergeByAdding(acc))
// reducer({ Tatooine: 1 }, 3) == { Naboo: 1, Tatooine: 1 }

WaldoJeffers

import { add, mergeWith } from 'conductor'

const mergeByAdding = mergeWith(add)
// mergeByAdding({ Alderaan: 1, Tattooine: 2 }, { Tattooine: 1 })
// == { Alderaan: 1, Tattooine: 3 }

WaldoJeffers

import { compose } from 'conductor'

const countHomeworld = compose(countOne, getHomeworldName)
// countHomeworld(1) == { Tatooine: 1 }