Underscore.js与nodejs相结合

今天发现这个Underscore.js，文档说
http://documentcloud.github.com/underscore/

引用

Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby)。

提供了许多类似ruby风格的函数，这是我所喜欢的。
看几个例子。
安装

引用

npm install underscore

在nodes.js中测试

_ = require 'underscore'
_.each [1, 2, 3], (num) -> console.log(num)#=>1 2 3

_.each
  one : 1
  tow:2
  three:3
  (num,key) ->
    console.log "#{key}:#{num}"

a1 =  _.map [1,2,3,4], (num)-> num * 3
_.each a1, (num) -> console.log(num)#=>3 6 9 12

有兴趣的读者可到上面的提到的网址看看。