Expend CoffeeScript doc

coffeescript.html.markdown

@@ -2,9 +2,13 @@
 language: coffeescript
 contributors:
   - ["Tenor Biel", "http://github.com/L8D"]
+  - ["Xavier Yao"], "http://github.com/xavieryao"]
 filename: coffeescript.coffee
 ---
 
+CoffeeScript is a little language that compiles one-to-one into the equivalent JavaScript, and there is no interpretation at runtime. 
+As one of the succeeders of JavaScript, CoffeeScript tries its best to output readable, pretty-printed and smooth-running JavaScript codes working well in every JavaScript runtime.
+
 See also [the CoffeeScript website](http://coffeescript.org/), which has a complete tutorial on CoffeeScript.
 
 ``` coffeescript
@@ -30,6 +34,17 @@ number = -42 if opposite #=> if(opposite) { number = -42; }
 # Functions:
 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 + "...";
+#};
+
 # Ranges:
 list = [1..5] #=> var list = [1, 2, 3, 4, 5];
 
@@ -47,11 +62,36 @@ math =
 # 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);
+#};
 
 # Existence:
 alert "I knew it!" if elvis?
 #=> if(typeof elvis !== "undefined" && elvis !== null) { alert("I knew it!"); }
 
 # Array comprehensions:
-cubes = (math.cube num for num in list) #=> ...
+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);
+#  }
+#}
 ```