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| diff --git a/zh-cn/coffeescript-cn.html.markdown b/zh-cn/coffeescript-cn.html.markdown new file mode 100644 index 00000000..8fb96749 --- /dev/null +++ b/zh-cn/coffeescript-cn.html.markdown @@ -0,0 +1,101 @@ +--- +language: coffeescript +contributors: +  - ["Tenor Biel", "http://github.com/L8D"] +  - ["Xavier Yao"], "http://github.com/xavieryao"] +translators: +  - ["Xavier Yao"], "http://github.com/xavieryao"] +filename: coffeescript-cn.coffee +lang: zh-cn +--- + +CoffeeScript是逐句编译为JavaScript的一种小型语言,且没有运行时的解释器。 +作为JavaScript的替代品之一,CoffeeScript旨在编译人类可读、美观优雅且速度不输原生的代码, +且编译后的代码可以在任何JavaScript运行时正确运行。 + +参阅 [CoffeeScript官方网站](http://coffeescript.org/)以获取CoffeeScript的完整教程。 + +``` coffeescript +# CoffeeScript是一种很潮的编程语言, +# 它紧随众多现代编程语言的趋势。 +# 因此正如Ruby和Python,CoffeeScript使用井号标记注释。 + +### +大段落注释以此为例,可以被直接编译为 '/ *' 和 '* /' 包裹的JavaScript代码。 + +在继续之前你需要了解JavaScript的基本概念。 + +示例中 => 后为编译后的JavaScript代码 +### + +# 赋值: +number   = 42 #=> var number = 42; +opposite = true #=> var opposite = true; + +# 条件: +number = -42 if opposite #=> if(opposite) { number = -42; } + +# 函数: +square = (x) -> x * x #=> var square = function(x) { return x * x; } + +fill = (container, liquid = "coffee") -> +  "Filling the #{container} with #{liquid}..." +#=>var fill; +# +#fill = function(container, liquid) { +#  if (liquid == null) { +#    liquid = "coffee"; +#  } +#  return "Filling the " + container + " with " + liquid + "..."; +#}; + +# 区间: +list = [1..5] #=> var list = [1, 2, 3, 4, 5]; + +# 对象: +math = +  root:   Math.sqrt +  square: square +  cube:   (x) -> x * square x +#=> var math = { +#  "root": Math.sqrt, +#  "square": square, +#  "cube": function(x) { return x * square(x); } +#} + +# Splats: +race = (winner, runners...) -> +  print winner, runners +#=>race = function() { +#  var runners, winner; +#  winner = arguments[0], runners = 2 <= arguments.length ? __slice.call(arguments, 1) : []; +#  return print(winner, runners); +#}; + +# 存在判断: +alert "I knew it!" if elvis? +#=> if(typeof elvis !== "undefined" && elvis !== null) { alert("I knew it!"); } + +# 数组推导: +cubes = (math.cube num for num in list)  +#=>cubes = (function() { +#	var _i, _len, _results; +#	_results = []; +# 	for (_i = 0, _len = list.length; _i < _len; _i++) { +#		num = list[_i]; +#		_results.push(math.cube(num)); +#	} +#	return _results; +#  })(); + +foods = ['broccoli', 'spinach', 'chocolate'] +eat food for food in foods when food isnt 'chocolate' +#=>foods = ['broccoli', 'spinach', 'chocolate']; +# +#for (_k = 0, _len2 = foods.length; _k < _len2; _k++) { +#  food = foods[_k]; +#  if (food !== 'chocolate') { +#    eat(food); +#  } +#} +``` | 
