junwatu

Howto build a rust compiler for the Raspberry Pi on Debian 7.1 (wheezy)

sudo apt-get install git build-essential
test `uname -m` = x86_64 && sudo apt-get install ia32-libs
git clone https://github.com/raspberrypi/tools.git
export PATH=$PWD/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin:$PATH
git clone http://github.com/mozilla/rust.git
cd rust
./configure --target-triples=arm-unknown-linux-gnueabihf

make

junwatu

 http {
    proxy_cache_path  /var/cache/nginx levels=1:2 keys_zone=one:8m max_size=3000m inactive=600m;
    proxy_temp_path /var/tmp;
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;

    gzip on;
    gzip_comp_level 6;

junwatu

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

junwatu

var React = require("react"), Dom = React.DOM;
var LogOutButton = require('./src/logout');
var events = require('api/events');

var Main = React.createClass({
    // this mixin provides this.emitLogout, and if we set onLogout it'll be called when "logout" is emitted
    mixins: [events.mixinFor("logout")],

    getInitialState: function(){
        return {

junwatu

# You don't need Fog in Ruby or some other library to upload to S3 -- shell works perfectly fine
# This is how I upload my new Sol Trader builds (http://soltrader.net)
# Based on a modified script from here: http://tmont.com/blargh/2014/1/uploading-to-s3-in-bash

S3KEY="my aws key"
S3SECRET="my aws secret" # pass these in

function putS3
{
  path=$1

junwatu

ES6 Defaults / Overrides Pattern

Combine default parameters and destructuring for a compact version of the defaults / overrides pattern.

function foo ({
    bar = 'no',
    baz = 'works!'
  } = {}) {

junwatu

This does NOT work on Raspberry Pi 2!

0. Obtain a 8GB (or bigger) SD Card
1. Download disk image from http://janos.io/builds/fxos-pi-gpio.img.zip and unzip
2. Put SD card in your computer
3. Find out where your SD card is mounted (BE REALLY SURE ITS THE RIGHT DEVICE, IT WILL BE WIPED COMPLETELY!!!), f.e. /dev/disk5 on OSX
4. On Linux, run: sudo dd bs=4M if=fxos-pi-gpio.img of=/path/to/your/disk
5. On OSX, run: sudo dd bs=4m if=fxos-pi-gpio.img of=/dev/rdisk5 (do rdisk, not disk here!)
6. When it's done put it in your Pi and start up
7. The demo's are wired like this: yellow LED on GPIO2, red LED on GPIO3, button (wire it as pulldown) on GPIO26.

junwatu

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

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.

---

junwatu

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define MAX_FRAME_SIZE 256*1024 // KB
#define CONTENT_LENGTH "Content-Length: "
#define PAYLOAD "\r\n"

int main()
{

junwatu

#!/usr/bin/env xcrun swift

/*
gen.swift is a direct port of cfdrake's helloevolve.py from Python 2.7 to Swift 3
-------------------- https://gist.github.com/cfdrake/973505 ---------------------
gen.swift implements a genetic algorithm that starts with a base
population of randomly generated strings, iterates over a certain number of
generations while implementing 'natural selection', and prints out the most fit
string.
The parameters of the simulation can be changed by modifying one of the many