kopylovvlad

square = (x = 0) ->
  x * x
sum = (x = 0, y = 0) ->
  x + y
console.log(square(2))
console.log(square())
console.log(sum(10, 5))
console.log(sum(3, 7))

name = 'John'

kopylovvlad

'use strict'
const square = (x = 0) => {
  return x * x
}
const sum = (x = 0, y = 0) => {
  return x + y
}
console.log(square(2))
console.log(square())
console.log(sum(10, 5))

kopylovvlad

say_hello = (name, job_position) ->
  "Hello. My name is #{name}. And I am a #{job_position}"
console.log(say_hello('John', 'developer'))
console.log(say_hello('Eva', 'designer'))

cat =
  name: 'cat'
  say: 'meow'
say = (animal) ->
  "#{animal.name} says #{animal.say}"

kopylovvlad

'use strict'
const say_hello = (name, jobPosition) => {
  return `Hello. My name is ${name}. And I am a ${jobPosition}`
}
console.log(say_hello('John', 'developer'))
console.log(say_hello('Eva', 'designer'))

let cat = {
  name: 'cat',
  say: 'meow'

kopylovvlad

class Animal
  constructor: (name)->
    @name = name

  walk: ()->
    console.log("#{@name} is walking")

class Rabbit extends Animal
  walk: ()->
    super()

kopylovvlad

'use strict'
class Animal {
  constructor (name) {
    this.name = name
  }

  walk () {
    console.log(`${this.name} is walking`)
  }
}

kopylovvlad

_loadDataForUser = (url, callback) ->
  setTimeout(callback, 2 * 1000)

loadDataForUsers = (userNames) ->
  for i in userNames
    _loadDataForUser "users/#{userNames[i]}", ()->
      console.log('Fetching for ', i)

loadDataForUsers(['John', 'Eve', 'Oleg'])
# Fetching for  Oleg

kopylovvlad

'use strict'
const _loadDataForUser = (url, callback) => {
  setTimeout(callback, 2 * 1000)
}
const loadDataForUsers = (userNames) => {
  for (var i in userNames) {
    _loadDataForUser(`users/${userNames[i]}`, function () {
      console.log('Fetching for ', userNames[i])
    })
  }

kopylovvlad

'use strict'
const _loadDataForUser = (url, callback) => {
  setTimeout(callback, 2 * 1000)
}
const loadDataForUsers = (userNames) => {
  for (let i in userNames) {
    _loadDataForUser(`users/${userNames[i]}`, function () {
      console.log('Fetching for ', userNames[i])
    })
  }

kopylovvlad

'use strict'
let groceryList = new Set()
groceryList
  .add('Bananas')
  .add('Apples')
  .add('Grapes')
  .add('Kiwis')
  .add('Pears')
  .add('Apples') // dublicates will be ignored