swiftly-optional/test.js

Optionals for JavaScript, inspired by Swift

const Optional = require('swiftly-optional')

const users = [
  {
    name: 'Joe',
    profile: {
      location: {
        city: 'Boston',
        country: 'USA'
      } 
    }
  }, {
    name: 'Joe',
    profile: null
  }, 
  undefined
]

users.forEach( user => {
  let location = Optional(user).profile_.location
  if (location) {
    console.log( `${location.city}, ${location.country}` )
  }
})