gistfile1.txt

enum Subject {
  Js = 'JavaScript',
  Html = 'Hyper Text Markup Language',
  Css = 'Cascading Style Sheets',
  React = 'React'
}

function describeLearning (subject: Subject) {
  console.log('Today I learned about:', subject)
}
describeLearning(Subject.Js)

String()
Number()

class Car {
}
const car = new Car()

type Stuff = string | number
type StuffOrBoolean = Stuff | boolean
type Player = [jersey: number, first: string, last: string, drafted: boolean]
interface Trip { start: string, end: string, budget: number }
interface Cruise extends Trip { boat: string }
const cruise: Cruise = {
  start: 'a',
  end: 'b',
  budget: 2000,
  boat: 'c'
}
// console.log(Stuff)

// Union
const random = Math.random()
// const result = random > 0.5 ? 'hello' : 42
const x = 1

const numbers = [1, 2, 3]
const stuff = ['a', 'b', 'c', 1, x]
const tuple: Player = [1, 'dorothy', 'parker', true]

const trip = {
  start: 'NYC',
  end: 'Johannesburg',
  budget: 1000
}

function describeTrip (trip: Trip) {
  console.log('Your trip will start in:', trip.start)
  console.log('Your trip will end in:', trip.end)
  if (trip.budget > 5000) {
    console.log('Your trip is too expensive!')
  } else {
    console.log('Your trip is affordable... barely...')
  }
}
describeTrip(trip)

function announcePick (player: Player) {
  const nextNumber = player[0] + 1
  const uppercaseName = player[1].toUpperCase()
}
announcePick(tuple)

function add (a: string , b: string) {
  // 1 + 1 === 2
  // '1' + '1' === '11'
  return a.length + b.length
}

const result = add('hello', 'hi')
console.log(result)

function something (x: string) {

}
something(result)