Partial Application via Bind

partialApplication.js

// Can't use curried functions for some reason?
// Never fear, partial application via the bind() method is here!
const getFromAPI = (baseURL, endpoint, callback) =>
  fetch(`${baseURL}${endpoint}`)
	.then(res => res.json())
	.then(data => callback(data))

// Partially apply the baseURL
const getFromGithub = getFromAPI.bind(null, 'https://api.github.com')

// Partially apply some endpoints
const getUsersFromGithub = getFromGithub.bind(null, '/users')
const getReposFromGithub = getFromGithub.bind(null, '/repositories')

// Use liberally
getUsersFromGithub(data => {
  data.forEach(user => {
    console.log(user.login)
  })
})
// ["mojombo", "defunkt", "pjhyett", "wycats", "ezmobius"]