chuck0523

# for

# スタンダードな使い方。
sum = 0
for i in [0..9]
	sum += i
console.log sum

# 処理文と条件文の順序を逆にすることもできる
sum = 0 

chuck0523

// Generated by CoffeeScript 1.9.3
(function() {
  var i, j, k, l, sum, total;

  sum = 0;

  for (i = j = 0; j <= 9; i = ++j) {
    sum += i;
  }

chuck0523

# array 
for color in ["red", "blue", "pink"]
	console.log color

# 1行で書くとこんな感じ
console.log color for color in ["red", "blue", "pink"]

# whenで条件指定
console.log color for color in ["red", "blue",
 "pink"] when color isnt "blue"

chuck0523

// Generated by CoffeeScript 1.9.3
(function() {
  var color, i, j, k, l, len, len1, len2, len3, m, name, ref, ref1, ref2, ref3, result, score;

  ref = ["red", "blue", "pink"];
  for (j = 0, len = ref.length; j < len; j++) {
    color = ref[j];
    console.log(color);
  }

chuck0523

# function

### 
JSではこう書く
function hello() {}
var hello = function() {}
coffeeでは後者！
###

# 基本形

chuck0523

// Generated by CoffeeScript 1.9.3

/* 
JSではこう書く
function hello() {}
var hello = function() {}
coffeeでは後者！
 */

(function() {

chuck0523

# 分割代入
[a, b, c] = [1, 5, 10]
console.log a for a in [a, b, c]
# 1 5 10

# 入れ替え
x = 10
y = 20
show = (a, b) -> console.log "#{a} : #{b}"
show(x, y)	# 10 : 20

chuck0523

// Generated by CoffeeScript 1.9.3
(function() {
  var a, b, c, email, i, j, len, len1, name, ref, ref1, ref2, ref3, ref4, results, show, user, x, y;

  ref = [1, 5, 10], a = ref[0], b = ref[1], c = ref[2];

  ref1 = [a, b, c];
  for (i = 0, len = ref1.length; i < len; i++) {
    a = ref1[i];
    console.log(a);

chuck0523

# class

log = (x) -> console.log x

# 大文字から始まる
class User 
	constructor : (name) ->
		this.name = name
		# thisは@で置き換えてもOK

chuck0523

// Generated by CoffeeScript 1.9.3
(function() {
  var User, log, me, you;

  log = function(x) {
    return console.log(x);
  };

  User = (function() {
    function User(name) {