paf31

Introduction

At DICOM Grid, we recently made the decision to use Haskell for some of our newer projects, mostly small, independent web services. This isn't the first time I've had the opportunity to use Haskell at work - I had previously used Haskell to write tools to automate some processes like generation of documentation for TypeScript code - but this is the first time we will be deploying Haskell code into production.

Over the past few months, I have been working on two Haskell services:

• A reimplementation of an existing socket.io service, previously written for NodeJS using TypeScript.
• A new service, which would interact with third-party components using standard data formats from the medical industry.

I will write here mostly about the first project, since it is a self-contained project which provides a good example of the power of Haskell. Moreover, the proces

hasdavidc

var StoreListenerMixin = function(...stores) {
  var StoreMixin = {
    getInitialState() {
      return this.getStateFromStores(this.props);
    },

    componentDidMount() {
      stores.forEach(store => store.addChangeListener(this.handleStoresChanged));

      this.setState(this.getStateFromStores(this.props));

soyuka

//global variable 
test = 'hello';

//is exactly the same as
global.test = 'hello';

//local variable - this will definitly override your global variable
var test = 'hello';

//using the process scope, if, and really if, you can't do without a global variable

kachayev

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

By @kachayev

Intro

sebmarkbage

React Element Factories and JSX

You probably came here because your code is calling your component as a plain function call. This is now deprecated:

var MyComponent = require('MyComponent');

function render() {
 return MyComponent({ foo: 'bar' }); // WARNING

grugq

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

richhickey

(require '[clojure.core.async :as a])

(def xform (comp (map inc)
              (filter even?)
              (dedupe)
              (flatmap range)
              (partition-all 3)
              (partition-by #(< (apply + %) 7))
              (flatmap flatten)
              (random-sample 1.0)

sebmarkbage

New React Element Factories and JSX

In React 0.12, we're making a core change to how React.createClass(...) and JSX works.

If you're using JSX in the typical way for all (and only) React components, then this transition will be seamless. Otherwise there are some minor breaking changes described below.

The Problem

hsribei

Putting the "Tor" back in Torrent

How a Popcorn Time fork patch could incentivize people to run thousands of new Tor relays

This is a follow-up to this discussion: Can NAT traversal be Tor's killer feature?

If torrents are P2P's killer application, and NAT traversal/"static IP" are Tor's (via hidden services), putting them together could prove to be the best incentivization scheme for growing the Tor network other than cold crypto cash.

You're stupid

Everybody knows you're not supposed to use torrents with tor, right?

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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