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authorAdam Bard <github@adambard.com>2014-02-05 11:30:20 -0800
committerAdam Bard <github@adambard.com>2014-02-05 11:30:20 -0800
commit52ae1bd4ba6d80b0dcce71af76ec06c52c1d06d3 (patch)
tree2cd696c696cfd6d28a4701010eb6c6ba20f3cb3c /zh-cn/coffeescript-cn.html.markdown
parent1cd811966d27c3432a2c37585b0c17f5e5b4e81a (diff)
parentb3f363fcf206adb7e63cf46598514fc692ef6a45 (diff)
Merge pull request #515 from xavieryao/master
Improvement and zh-cn translation for CoffeeScript
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+---
+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);
+# }
+#}
+```