sewerynkalemba

// const obj = {x: 3.6, y: 7.8}
// makeCalculation(obj)

function makeCalculation({x, y: d, z = 4}) {
  return Math.floor((x + d + z) / 3)
}

// to jest to samo, co:
function makeCalculation(obj) {
  const {x, y: d, z = 4} = obj

sewerynkalemba

const getFive = () => 5
const addFive = a => a + 5
const divide = (a, b) => a / b

// to jest to samo, co:
function getFive() {
  return 5
}
function addFive(a) {
  return a + 5

sewerynkalemba

const a = 'witaj'
const b = 42
const c = {d: [true, false]}
console.log({a, b, c})

// to jest to samo, co:
console.log({a: a, b: b, c: c})

// w Reactcie:
function Counter({initialCount, step}) {

sewerynkalemba

const greeting = 'Witaj'
const subject = 'Świecie'
console.log(`${greeting} ${subject}!`) // Witaj Świecie!

// to jest to samo, co:
console.log(greeting + ' ' + subject + '!')

// w Reactcie:
function Box({className, ...props}) {
  return <div className={`box ${className}`} {...props} />