# Functions: square: x => x * x. sum: x, y => x + y. odd: x => x % 2 is 0. even: x => x % 2 aint 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 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. a: 5 change_a_and_set_b: => a: 10 b: 15. b: 20 # Array comprehensions. supper: food.capitalize() for food in ['toast', 'cheese', 'wine']. drink(bottle) for bottle, i in ['soda', 'wine', 'lemonade'] if 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. Animal: => . Animal.prototype.move: meters => alert(this.name + " moved " + meters + "m."). Snake: name => this.name: name. Snake.prototype: Animal Snake.prototype.move: => alert('Slithering...') super(5). Horse: name => this.name: name. Horse.prototype: Animal Horse.prototype.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