coffeescript+prototypejs使编写nodejs更象ruby-like
首先安装prototype for nodejs
prototype = require 'prototype'Object.extend global, prototype(9).times (x)-> console.log x[1,2,3,4].each (x)-> console.log xPerson = Class.create #定义一个类 initialize: (name)-> @name = name say: (message)-> "#{@name}:#{message}"Pirate = Class.create Person, #继承父类 say: ($super, message)-> "#{$super message}, yarr!"john = new Pirate 'Long John'console.log john.say 'ahoy matey' #输出Long John:ahoy matey, yarr!
Class.create takes in an arbitrary number of arguments. The first—if it is another class—defines that the new class should inherit from it. All other arguments are added as instance methods; internally they are subsequent calls to addMethods (see below). This can conveniently be used for mixing in modules:
#define a moduleVulnerable = wound: (hp)-> @health -= hp @kill() if @health < 0 kill: -> @dead = true#the first argument isn't a class object, so there is no inheritance ...#simply mix in all the arguments as methods:Person2 = Class.create Vulnerable, initialize: -> @health = 100 @dead = falsebruce = new Person2bruce.wound 55console.log bruce.health #=> 45
class Animal constructor: (@name) -> move: (meters) -> alert @name + " moved #{meters}m."class Snake extends Animal move: -> alert "Slithering..." super 5class Horse extends Animal move: -> alert "Galloping..." super 45sam = new Snake "Sammy the Python"tom = new Horse "Tommy the Palomino"sam.move()tom.move()String::dasherize = -> this.replace /_/g, "-"var Animal, Horse, Snake, sam, tom, __hasProp = Object.prototype.hasOwnProperty, __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; };Animal = (function() { function Animal(name) { this.name = name; } Animal.prototype.move = function(meters) { return alert(this.name + (" moved " + meters + "m.")); }; return Animal;})();Snake = (function(_super) { __extends(Snake, _super); function Snake() { Snake.__super__.constructor.apply(this, arguments); } Snake.prototype.move = function() { alert("Slithering..."); return Snake.__super__.move.call(this, 5); }; return Snake;})(Animal);Horse = (function(_super) { __extends(Horse, _super); function Horse() { Horse.__super__.constructor.apply(this, arguments); } Horse.prototype.move = function() { alert("Galloping..."); return Horse.__super__.move.call(this, 45); }; return Horse;})(Animal);sam = new Snake("Sammy the Python");tom = new Horse("Tommy the Palomino");sam.move();tom.move();String.prototype.dasherize = function() { return this.replace(/_/g, "-");};