pfrazee

Can we create a smart contract VM on nodejs using Dat?

Ethereum is a trustless network of VMs which run smart contracts submitted by users. It uses proof-of-work to synchronize state across the network, and has every node execute the contracts in order to verify the state's validity. Each transaction is stored in the blockchain for replayability. Read more about it here.

Ethereum's "trustless network" model has some disadvantages:

• Transaction processing is slow - it maxes at roughly 25tx/s right now for all contracts combined.
• Every transaction costs money to execute.
• The entire blockchain state must be shared across the computing network.
• No private transactions.

ateucher

These are instructions for setting up git to authenticate with GitHub when you have 2-factor authentication set up. This authentication should be inherited by any GUI client you are using. These are intentionally brief instructions, with links to more detail in the appropriate places.

1. Download and install the git command-line client (if required).

2. Open the git bash window and introduce yourself to git (if required):

   git config --global user.name 'Firstname Lastname'
   git config --global user.email 'firstname.lastname@gov.bc.ca'
   

xavierlepretre

module.exports = {
    promisify: function (web3) {
        // Pipes values from a Web3 callback.
        var callbackToResolve = function (resolve, reject) {
            return function (error, value) {
                    if (error) {
                        reject(error);
                    } else {
                        resolve(value);
                    }

mxstbr

Enable tab completion for JSX with Emmet in Atom

This guide assumes you have the emmet and language-babel packages already installed in Atom

1. Open the keymap.cson file by clicking on Atom -> Keymap… in the menu bar
2. Add these lines of code to your keymap:

'atom-text-editor[data-grammar~="jsx"]:not([mini])':

thejmazz

{
  "presets": ["es2015"],
  "plugins": ["transform-async-to-generator"]
}

Avaq

const I  = x => x
const K  = x => y => x
const A  = f => x => f (x)
const T  = x => f => f (x)
const W  = f => x => f (x) (x)
const C  = f => y => x => f (x) (y)
const B  = f => g => x => f (g (x))
const S  = f => g => x => f (x) (g (x))
const S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))

lopezjurip

Prerequisites

Make sure you have installed Homebrew and (Homebrew-Cask)[http://caskroom.io/].

# Install Homebrew
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

# Install Homebrew-cask
brew install caskroom/cask/brew-cask

markdalgleish

import transitions from './transitions.css';

export default () => (
  <ReactCSSTransitionGroup transitionName={transitions}>
    { ... }
  </ReactCSSTransitionGroup>
);

georgiana-gligor

Create PDF files from Markdown sources in OSX

When [Markdown][markdown] appeared more than 10 years ago, it aimed to make it easier to express ideas in an easy-to-write plain text format. It offers a simple syntax that takes the writer focus away from the formatting, thus giving her time to focus on the actual content.

The market abunds of editors to be used for help with markdown. After a few attempts, I settled to Sublime and its browser preview plugin, which work great for me and have a small memory footprint to accomplish that. To pass the results around to other people, less technical, a markdown file and a bunch of images is not the best approach, so converting it to a more robust format like PDF seems like a much better choice.

[Pandoc][pandoc] is the swiss-army knife of converting documents between various formats. While being able to deal with heavy-weight formats like docx and epub, we will need it for the more lightweight markdown. To be able to generate PDF files, we need LaTeX. On OSX, the s

justmoon

'use strict';

module.exports = function CustomError(message, extra) {
  Error.captureStackTrace(this, this.constructor);
  this.name = this.constructor.name;
  this.message = message;
  this.extra = extra;
};

require('util').inherits(module.exports, Error);