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The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called (Functional) Reactive Programming (FRP).

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

eccstartup

Why You Can't Un-Root a Compromised Machine

Let's say somebody temporarily got root access to your system, whether because you "temporarily" gave them sudo rights, they guessed your password, or any other way. Even if you can disable their original method of accessing root, there's an infinite number of dirty tricks they can use to easily get it back in the future.

While the obvious tricks are easy to spot, like adding an entry to /root/.ssh/authorized_keys, or creating a new user, potentially via running malware, or via a cron job. I recently came across a rather subtle one that doesn't require changing any code, but instead exploits a standard feature of Linux user permissions system called setuid to subtly allow them to execute a root shell from any user account from the system (including www-data, which you might not even know if compromised).

If the "setuid bit" (or flag, or permission mode) is set for executable, the operating system will run not as the cur

eccstartup

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called (Functional) Reactive Programming (FRP).

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

eccstartup

As compiled by Kevin Wright a.k.a @thecoda

(executive producer of the movie, and I didn't even know it... clever huh?)

please, please, please - If you know of any slides/code/whatever not on here, then ping me on twitter or comment this Gist!

This gist will be updated as and when I find new information. So it's probably best not to fork it, or you'll miss the updates!

Monday June 16th

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新闻w

RHEL 7 发布应该算是比较大的新闻了吧~

人民群众纷纷表示红帽步子太大不要扯着蛋了比较好...

F_XZ: 完全没关心...

猫注意的新功能有 virtio 等 KVM 优化, docker 支持, 以及 ruby 2.0, python 2.7, java 7 之类的吧

eccstartup

基于 Node.js 和 Express.js 的 RESTful API 服务端开发

开发环境

• Node.js
  • Arch Linux: 直接使用包管理器安装
  • Ubuntu / Debian / etc: 使用 visionmedia/n
  • OS X / Windows: 使用官方提供的安装包
• 编辑器

• WebStorm

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##Javascript

###预习

关于 JS 环境的配置请参考 https://plus.google.com/117239089659078825668/posts/jDkwn5mWdWJ

需要一个可以执行JS的环境（REPL）才能继续下面的学习。

###Hello, world

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function spdiagm{T<:Integer}(B, d::Array{T, 1}, m::Integer, n::Integer)
    ndiags = length(d)
    ncoeffs = 0
    for vec in B
        ncoeffs += length(vec)
    end
    I = Array(T, ncoeffs)
    J = Array(T, ncoeffs)
    V = Array(Float64, ncoeffs)
    id = 0

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/*****************
 * bossFight.js *
 *****************
 *
 * NO FARTHER, DR. EVAL!!!!
 * YOU WILL NOT GET OUT OF HERE ALIVE!!!!
 * IT'S TIME YOU SEE MY TRUE FORM!!!!
 * FACE MY ROBOT WRATH!!!!!
 */

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/**********************
 * superDrEvalBros.js *
 **********************
 *
 * You're still here?! Well, Dr. Eval, let's see
 * how well you can operate with one less dimension.
 *
 * Give up now. Unless you have a magic mushroom
 * up your sleeve, it's all over.
 */