CoffeeScript is so Funny , Let’s start hot coffee

variable

name = 'kamal'

string

name = 'Mostafa kamal'
 career = "Developer | Designer"
html = """
       <strong>
         cup of coffeescript
       </strong>
       """

interpolation

#{yo}

name = 'Mostafa Kamal'
 age = 5
 users = 'users name is #{name} and age is #{age}'

functions

-> this is functions keywords.

myfuntion = (x) -> //something

objects & array

lists = ['kamal', 'jamal', 5 , 'karim']

# objects

users = {name: "Mostafa", status: "Active"}
###
objects
###
users =
  infos:
    name: "Max"
    age:  11
  profile:
    status: "Developer"
    salary:  1000

scoping

salary = 50000
users = ->
  salary = 60000
  payment = salary + 100

conditions

if conditon
  x = 'this is if condition'
else if condtionElse
  x = 'This is else if condition'
else
  x = 'This is default condition'

• tenray ? .. : ..

if conditionKamal then kamal else notKamal

Loop

items = ['toast', 'cheese', 'wine']
eat food for food in items
# [..] to <- from
countdown = (num for num in [10..1])
if price == 500
  buy()  while supply > demand
  sell() until supply > demand

switch / case

switch day
  when "Mon" then {
    test: 'kamal'
  }
  when "Tue" then go relax
  when "Thu" then go iceFishing
  when "Fri", "Sat"
    if day is bingoDay
      go bingo
      go dancing
  when "Sun" then go church
  else go work

Arrow function

Account = (customer, cart) ->
 @customer = customer
 @cart = cart
 $('.shopping_cart').on 'click', (event) =>
   @customer.purchase @cart

class

class Animal
  constructor: (@name) ->
  move: (meters) ->
    alert @name + " moved #{meters}m."
class Snake extends Animal
  move: ->
    alert "Slithering..."
    super 5
class Horse extends Animal
  move: ->
    alert "Galloping..."
    super 45
sam = new Snake "Sammy the Python"
tom = new Horse "Tommy the Palomino"
sam.move()
tom.move()

Modules

• es6

import * as underscore from 'underscore'
export * from 'underscore'

try / catch

connection(
  try
    'done'
  catch error
    "username or password mismatch ! check again"
)

operators

• official site
• online compiler

Read here

coffeeScript is Fun with code4mk