WaldoJeffers

const toObj = (key, value) => ({ [key]: value }) // toObj('hello', 'world) === { hello: 'world' }
const countOne = name => toObj(name, 1) // countOne('Tatooine') === { Tatooine: 1 }

WaldoJeffers

import { compose, get } from 'conductor'

const getHomeworldName = compose(get('name'), fetchJSON, get('homeworld'), fetchCharacter)
// getHomeworldName(1) == { name: 'Tatooine', ... }

WaldoJeffers

const character_ids = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

WaldoJeffers

const fetchJSON = url => fetch(url).then(res => res.json())
const fetchCharacter = id => fetchJSON(`https://swapi.co/api/people/${id}`)
// fetchCharacter(1) == { name: 'Luke Skywalker', homeworld: 'https://swapi.co/api/planets/1/' }

WaldoJeffers

{
  Alderaan: {
    brown: 1
  },
  Naboo: {
    red: 1
  },
  Stewjon: {
    'blue-gray': 1,
  Tatooine: {

WaldoJeffers

const homeworld_stats = { Alderaan: 1, Naboo: 1, Stewjon: 1, Tatooine: 7 }

WaldoJeffers

import { reduce } from 'conductor'

const obj = { books: 10, ruler: 1, pencils: 5 }
const add = (a, b) => a + b
const total = reduce(add, 0, obj) // 16

WaldoJeffers

const add = (a, b) => a + b
const total = Object.values(obj).reduce(add, 0) // 16

WaldoJeffers

const obj = { books: 10, ruler: 1, pencils: 5 }

WaldoJeffers

const result = await Promise
  .all(Object.values(obj).map(isEven))
  .then(results => Object.keys(obj).reduce((acc, key, index) => {
    if (results[index]){
      acc[key] = obj[key]
    }
    return acc
  }, {}) // { books: 10 }