ng-nebraska talk files - Services - The Importance of Learning JavaScript and staying Marketable

emojiUtils.after.js

export default {flatten}

function flatten(array) {
  return array.reduce((a, b) => a.concat(b), [])
}

emojiUtils.factory.after.js

import angular from 'angular'
import emojiUtils from './emojiUtils'
angular.module('emojiApp')
  .factory('emojiUtils', () => emojiUtils)

emojiUtils.factory.before.js

angular.module('emojiApp')
  .factory('emojiUtils', emojiUtils)

function emojiUtils() {
  return {flatten}

  function flatten(array) {
    return array.reduce((a, b) => a.concat(b), [])
  }
}

emojiUtils.factory.test.before.js

describe('emojiUtils', function() {
  beforeEach(module('emojiApp'))

  beforeEach(inject(function(_emojiUtils_) {
    emojiUtils = _emojiUtils_
  })

  describe('flatten', function() {
    const {flatten} = emojiUtils

    it('should flatten an array', function() {
      const input = [[1], [2, 3], [4]]
      const result = [1, 2, 3, 4]
      expect(flatten(input)).to.deep.equal(result)
    })
  })
})

emojiUtils.test.after.js

import emojiUtils from './emojiUtils'
describe('emojiUtils', function() {

  describe('flatten', function() {
    const {flatten} = emojiUtils

    it('should flatten an array', function() {
      const input = [[1], [2, 3], [4]]
      const result = [1, 2, 3, 4]
      expect(flatten(input)).to.deep.equal(result)
    })
  })
})