Tricks for CoffeeScript¶
Section author: momo <mobeiheart@gmail.com>
1.字符串反转:
str = "hello"
(s for s in str by -1).join('')
2.遍历Object，注意是 of ，习惯容易写错成 in
"#{key} = #{value}" for key, value of {'a': 'b', 'c': 'd'}
3.除后取整，注意 // 的写法在 1.7.0 版本才添加:
(new Date(2014, 1, 2).getTime() - new Date(2014, 1, 1).getTime()) // 1000
Math.floor((new Date(2014, 1, 2).getTime() - new Date(2014, 1, 1).getTime() / 1000)
4.coffee repl中切到多行输入： C-V
5.assign property的语法糖:
class Animal
constructor: (@name) ->