我喜欢Ruby的原因

呵呵，你写一个来看看。很简单，假设已经有map这个函数，它遍历一个数组（或者列表，都行），对其中每个元素做一个操作，得到一个新的列表，前后两个列表的元素个数一样。
比如：

def double(x) { x * 2 }
a_list = [1, 2, 3, 4]
map(a_list, double) # [2, 4, 6, 8]

Java一个大毛病就是函数不是一等公民，high order就得用一堆诸如annonymous inner class之类的丑恶语法才能实现。C#至少这一点就比Java看着漂亮。

难度java不能够计算出这个Ruby结果？表述不出这个结构。

我只是感觉Ruby的变化还不够吸引我。

ruby是个玩具,java是个工具.
吹嘘Ruby/Rails的,只是某个自己顶个开源帽子,专赚顾问费的公司(大家心照,我就不点名了)在哪里吹呀吹.
为什么?因为java它吹不过IBM\Bea\Oracle,没有办法只能开辟新战场,正好见到
Rails,就拿来吹呀.可惜呀,吹了几年,还成不了气候.
其本质原因是脚本语言本身就是一个扶不起的阿斗!!!

ruby是个玩具,java是个工具.
吹嘘Ruby/Rails的,只是某个自己顶个开源帽子,专赚顾问费的公司(大家心照,我就不点名了)在哪里吹呀吹.
为什么?因为java它吹不过IBM\Bea\Oracle,没有办法只能开辟新战场,正好见到
Rails,就拿来吹呀.可惜呀,吹了几年,还成不了气候.
其本质原因是脚本语言本身就是一个扶不起的阿斗!!!

你把这个封装成一个函数,下次一句话就掉用了不更简单.
ruby 只是多提供几个方法,只能说明有足够的库,就能够更方便的实现.

有些东西是无法通过封装几个方法或库来替换的，比如closure, Java是无论如何也封装不出来的。

The silent majority
from Loud Thinking by David Heinemeier Hansson

I had a great time on the West coast recently with stops in Santa Barbara and Palo Alto. What always surprises me at events like these is the huge number of people I meet that are doing cool things with Rails that I've never heard of. The kind of people who are just really happy to be using Rails and happy to build businesses with it.

Most of them are not heavily involved with the community in the sense of always being in front of it. They're not the ones constantly commenting on the blogs. They're just enjoying working with the tools. That's a really refreshing sentiment.

It's easy for people to think that the interaction they witness on the web is a complete reflection of the world in general. Often it's quite the contrary. Which is why I so enjoy getting out of the web world and meeting people in the flesh. Hearing their stories, discussing their concerns, and sharing passions.

You can easily end up burning out on web participation because the loud minority twists your perception of what matters and who cares. But there's nothing like meeting people who tell you that working with Rails or listening to a talk or reading something you wrote either touched them, changed them, or made them move in a new direction. That's a big pay-off for getting involved with public sharing.

So thank you so very much to everyone who came up to me at any of the events out in California. It makes it all worth it to hear your stories. Keep on rocking with whatever it is that you're doing. Keep the passion and the optimism alive.