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@rochacbruno
rochacbruno / haversine.py
Created June 6, 2012 17:43
Calculate distance between latitude longitude pairs with Python
#!/usr/bin/env python
# Haversine formula example in Python
# Author: Wayne Dyck
import math
def distance(origin, destination):
lat1, lon1 = origin
lat2, lon2 = destination
@furf
furf / _.deep.js
Created July 30, 2012 17:06
underscore.js mixin for plucking nested properties
_.mixin({
// Get/set the value of a nested property
deep: function (obj, key, value) {
var keys = key.replace(/\[(["']?)([^\1]+?)\1?\]/g, '.$2').replace(/^\./, '').split('.'),
root,
i = 0,
n = keys.length;
@zziuni
zziuni / stuns
Created September 18, 2012 08:05
STUN server list
# source : http://code.google.com/p/natvpn/source/browse/trunk/stun_server_list
# A list of available STUN server.
stun.l.google.com:19302
stun1.l.google.com:19302
stun2.l.google.com:19302
stun3.l.google.com:19302
stun4.l.google.com:19302
stun01.sipphone.com
stun.ekiga.net
@awidegreen
awidegreen / vim_cheatsheet.md
Last active August 18, 2025 13:56
Vim shortcuts

Introduction

  • C-a == Ctrl-a
  • M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close
@joaomaia
joaomaia / bcd2number.js
Created October 15, 2012 14:20
Convert number to bcd and vice versa
/*
* bcd2number -> takes a nodejs buffer with a BCD and returns the corresponding number.
* input: nodejs buffer
* output: number
*/
var bcd2number = function(bcd)
{
var n = 0;
var m = 1;
for(var i = 0; i<bcd.length; i+=1) {
@quiver
quiver / receiver.py
Created November 19, 2012 15:36
[python]chat server using multicast
# chat server using multicast
# python fork of the original ruby implementation
# http://tx.pignata.com/2012/11/multicast-in-ruby-building-a-peer-to-peer-chat-system.html
# receiver.py
# usage : $ python receiver.py # wait for messages to come in
import socket
import struct
multicast_addr = '224.0.0.1'
@jhidalgo3
jhidalgo3 / downloader.js
Last active January 16, 2021 09:48
Use NodeJS to download files
var path = require('path');
var url = require('url');
var http = require('http');
var fs = require('fs');
var write_file;
//what global variable do we have?
var complete = false;
var content_length = 0;
var downloaded_bytes = 0;
@cobyism
cobyism / gh-pages-deploy.md
Last active July 1, 2025 06:35
Deploy to `gh-pages` from a `dist` folder on the master branch. Useful for use with [yeoman](http://yeoman.io).

Deploying a subfolder to GitHub Pages

Sometimes you want to have a subdirectory on the master branch be the root directory of a repository’s gh-pages branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master branch alongside the rest of your code.

For the sake of this example, let’s pretend the subfolder containing your site is named dist.

Step 1

Remove the dist directory from the project’s .gitignore file (it’s ignored by default by Yeoman).

@mikesmullin
mikesmullin / x86-assembly-notes.md
Last active July 30, 2025 11:43
Notes on x86-64 Assembly and Machine Code

Mike's x86-64 Assembly (ASM) Notes

Assembling Binary Machine Code

Operating Modes:

These determine the assumed/default size of instruction operands, and restricts which opcodes are available, and how they are used.

Modern operating systems, booted inside Real mode,

@sindresorhus
sindresorhus / post-merge
Last active May 17, 2025 14:19
git hook to run a command after `git pull` if a specified file was changed.In this example it's used to run `npm install` if package.json changed and `bower install` if `bower.json` changed.Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.
#!/usr/bin/env bash
# MIT © Sindre Sorhus - sindresorhus.com
# git hook to run a command after `git pull` if a specified file was changed
# Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.
changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"
check_run() {
echo "$changed_files" | grep --quiet "$1" && eval "$2"