177 lines
3.2 KiB
CoffeeScript
177 lines
3.2 KiB
CoffeeScript
# Functions:
|
|
square: (x) -> x * x
|
|
|
|
sum: (x, y) -> x + y
|
|
|
|
odd: (x) -> x % 2 isnt 0
|
|
|
|
even: (x) -> x % 2 is 0
|
|
|
|
run_loop: ->
|
|
fire_events((e) -> e.stopPropagation())
|
|
listen()
|
|
wait()
|
|
|
|
# Objects:
|
|
dense_object_literal: {one: 1, two: 2, three: 3}
|
|
|
|
spaced_out_multiline_object: {
|
|
pi: 3.14159
|
|
list: [1, 2, 3, 4]
|
|
regex: /match[ing](every|thing|\/)/gi
|
|
three: new Idea()
|
|
|
|
inner_obj: {
|
|
freedom: -> _.freedom()
|
|
}
|
|
}
|
|
|
|
# Arrays:
|
|
stooges: [{moe: 45}, {curly: 43}, {larry: 46}]
|
|
|
|
exponents: [(x) -> x, (x) -> x * x, (x) -> x * x * x]
|
|
|
|
empty: []
|
|
|
|
multiline: [
|
|
'line one'
|
|
'line two'
|
|
]
|
|
|
|
# Conditionals and ternaries.
|
|
if submarine.shields_up
|
|
full_speed_ahead()
|
|
fire_torpedos()
|
|
else if submarine.sinking
|
|
abandon_ship()
|
|
else
|
|
run_away()
|
|
|
|
eldest: if 25 > 21 then liz else marge
|
|
|
|
decoration: medal_of_honor if war_hero
|
|
|
|
go_to_sleep() unless coffee
|
|
|
|
# Returning early:
|
|
race: ->
|
|
run()
|
|
walk()
|
|
crawl()
|
|
if tired then return sleep()
|
|
race()
|
|
|
|
# Conditional assignment:
|
|
good ||= evil
|
|
wine &&= cheese
|
|
|
|
# Nested property access and calls.
|
|
((moon.turn(360))).shapes[3].move({x: 45, y: 30}).position['top'].offset('x')
|
|
|
|
a: b: c: 5
|
|
|
|
# Embedded JavaScript.
|
|
callback(
|
|
`function(e) { e.stop(); }`
|
|
)
|
|
|
|
# Try/Catch/Finally/Throw.
|
|
try
|
|
all_hell_breaks_loose()
|
|
dogs_and_cats_living_together()
|
|
throw "up"
|
|
catch error
|
|
print(error)
|
|
finally
|
|
clean_up()
|
|
|
|
try all_hell_breaks_loose() catch error then print(error) finally clean_up()
|
|
|
|
# While loops, break and continue.
|
|
while demand > supply
|
|
sell()
|
|
restock()
|
|
|
|
while supply > demand then buy()
|
|
|
|
while true
|
|
break if broken
|
|
continue if continuing
|
|
|
|
# Unary operators.
|
|
!!true
|
|
|
|
# Lexical scoping.
|
|
v_1: 5
|
|
change_a_and_set_b: ->
|
|
v_1: 10
|
|
v_2: 15
|
|
v_2: 20
|
|
|
|
# Array comprehensions.
|
|
supper: food.capitalize() for food in ['toast', 'cheese', 'wine']
|
|
|
|
drink(bottle) for bottle, i in ['soda', 'wine', 'lemonade'] when even(i)
|
|
|
|
# Switch statements ("else" serves as a default).
|
|
activity: switch day
|
|
when "Tuesday" then eat_breakfast()
|
|
when "Sunday" then go_to_church()
|
|
when "Saturday" then go_to_the_park()
|
|
when "Wednesday"
|
|
if day is bingo_day
|
|
go_to_bingo()
|
|
else
|
|
eat_breakfast()
|
|
go_to_work()
|
|
eat_dinner()
|
|
else go_to_work()
|
|
|
|
# Semicolons can optionally be used instead of newlines.
|
|
wednesday: -> eat_breakfast(); go_to_work(); eat_dinner()
|
|
|
|
# Array slice literals.
|
|
zero_to_nine: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
|
|
three_to_six: zero_to_nine[3..6]
|
|
|
|
# Multiline strings with inner quotes.
|
|
story: "Lorem ipsum dolor \"sit\" amet, consectetuer adipiscing elit,
|
|
sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna
|
|
aliquam erat volutpat. Ut wisi enim ad."
|
|
|
|
# Inheritance and calling super.
|
|
class Animal
|
|
move: (meters) ->
|
|
alert this.name + " moved " + meters + "m."
|
|
|
|
class Snake extends Animal
|
|
constructor: (name) ->
|
|
@name: name
|
|
|
|
move: ->
|
|
alert 'Slithering...'
|
|
super 5
|
|
|
|
class Horse extends Animal
|
|
constructor: (name) ->
|
|
@name: name
|
|
|
|
move: ->
|
|
alert 'Galloping...'
|
|
super 45
|
|
|
|
sam: new Snake "Sammy the Snake"
|
|
tom: new Horse "Tommy the Horse"
|
|
|
|
sam.move()
|
|
tom.move()
|
|
|
|
# Numbers.
|
|
a_googol: 1e100
|
|
hex: 0xff0000
|
|
negative: -1.0
|
|
infinity: Infinity
|
|
nan: NaN
|
|
|
|
# Deleting.
|
|
delete secret.identity |