mislav

connection = Faraday::Connection.new('http://example.com') do |builder|
  builder.request :url_encoded  # for POST/PUT params
  builder.adapter :net_http
end

# same as above, short form:
connection = Faraday.new 'http://example.com'

# GET
connection.get '/posts'

chrishamant

/**
* A* (A-Star) Pathfinding Algorithm in JavaScript
* @author  Matthew Trost
* @license Creative Commons Attribution-ShareAlike 3.0 Unported License
* @datepublished December 2010
*/

function astar (map, heuristic, cutCorners) {
	var listOpen = [];
	var listClosed = [];

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

arvearve

Mathematics: What do grad students in math do all day?

by Yasha Berchenko-Kogan

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?

blake41

What is a closure?

How do we implement/create/use a closure in Ruby?

What's the difference between a closure in JS vs Ruby?

Why do we use closures so much more in JS as opposed to Ruby?

What is the Ruby analog of an anonymous function in Javascript?

lulalala

class Banner < ActiveRecord::Base
  attr_accessor :image_width, :image_height
  mount_uploader :image, ImageUploader
  
  validate :check_dimensions, :on => :create
  def check_dimensions
    if !image_cache.nil? && (image.width < 300 || image.height < 300)
      errors.add :image, "Dimension too small."
    end
  end

tito

'''
Bluetooth/Pyjnius example
=========================

This was used to send some bytes to an arduino via bluetooth.
The app must have BLUETOOTH and BLUETOOTH_ADMIN permissions (well, i didn't
tested without BLUETOOTH_ADMIN, maybe it works.)

Connect your device to your phone, via the bluetooth menu. After the
pairing is done, you'll be able to use it in the app.

Integralist

• Dynamic Dispatch
• Dynamic Method
• Ghost Methods
• Dynamic Proxies
• Blank Slate
• Kernel Method
• Flattening the Scope (aka Nested Lexical Scopes)
• Context Probe
• Class Eval (not really a 'spell' more just a demonstration of its usage)
• Class Macros

nicolasembleton

#!/bin/bash

sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

josephg

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include "rope.h"

int main() {
  printf("AFL test harness\n");
  rope *r = rope_new();