crunchie84

partial from http://blog.dimaj.net/content/howto-view-and-analyze-your-logs-web-page

cd ~ 
wget https://download.elasticsearch.org/logstash/logstash/logstash-1.4.2.tar.gz
tar xzvf logstash-1.4.2.tar.gz 
sudo mv logstash-1.4.2 /opt/logstash
sudo adduser --system --disabled-login --no-create-home --group logstash 
sudo usermod -a -G adm logstash

#auto start script for logstash

crunchie84

install the ELK stack on an ubuntu-x64 machine on Azure

This guide has been revised 06-03-2015. Start with a clean ubuntu 14.04LTS-x64 machine and get it updated

sudo su
apt-get update && apt-get dist-upgrade
reboot

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public class MvcApplication : HttpApplication
{
  private static void initializeLogging()
  {
    var loggerConfiguration = new LoggerConfiguration()
      .Enrich.WithProperty("type", "application")
      .Enrich.WithProperty("application", "my-app-name")
      .Enrich.WithProperty("application_version", "1.2.3.4")
      .Enrich.WithProperty("environment", "development")
      .Enrich.With<Serilog.Extras.Web.Enrichers.HttpRequestIdEnricher>()

crunchie84

Keybase proof

I hereby claim:

• I am crunchie84 on github.
• I am markvanstraten (https://keybase.io/markvanstraten) on keybase.
• I have a public key ASD1218mTzon-h7Lo8XRSRFF1xcj_LbGJasrSZqSZZgcuwo

To claim this, I am signing this object:

crunchie84

const assert = require('chai').assert;

/**
 * parts of code taken from https://github.com/Reactive-Extensions/RxJS/blob/master/tests/helpers/reactiveassert.js#L32
 *
 * and modified to work with the rxjs5 testing shim which has no differentiation between values and predicates
 */
exports.assertEqual = function assertEqual(actual, expected) {
  const comparer = require('./is-equal'); // copied and adapted from https://raw.githubusercontent.com/Reactive-Extensions/RxJS/master/src/core/internal/isequal.js
  let isOk = true;

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Rx.Observable.timer(0, 10 * 1000)
  .switchMap(_ => fetch('https://blockchain.info/ticker?cors=true')
                    .then(res => res.json())
                    .then(parsed => parsed.EUR.buy)
  )
  .distinctUntilChanged()
  .scan((acc, curr) => ({
      delta: Math.round((acc.value - curr || 0) * 100) / 100,
      value: curr
    }), {})

crunchie84

LCD Digits

Your task is to create an LCD string representation of an integer value using a 3x3 grid of space, underscore, and pipe characters for each digit. Each digit is shown below (using a dot instead of a space)

._.   ...   ._.   ._.   ...   ._.   ._.   ._.   ._.   ._.
|.|   ..|   ._|   ._|   |_|   |_.   |_.   ..|   |_|   |_|
|_| ..| |_. ._| ..| ._| |_| ..| |_| ..|

crunchie84

/**
 * The question may arise whether a positive integer x is a Fibonacci number. This is true if and only if one or both of 5x^{2}+4 or 5x^{2}-4 is a perfect square.
 * https://en.wikipedia.org/wiki/Fibonacci_number#Recognizing_Fibonacci_numbers
 */

// the first 20 fibonacci numbers are found 0->6765
Array.from(generate(6765+1))
   .map((i, idx) => ({number: i, isFibonacci: isFibonacciNumber(i)}))
   .filter(kv => kv.isFibonacci)
   .map((kv, index) => console.log(`found ${1+index}th fibonacci number: ${kv.number}`));

crunchie84

import 'rxjs/add/observable/empty';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/concat';
import 'rxjs/add/operator/finally';
import { Observable } from "rxjs";

/**
 *
 * Lifecycle debugging for your stream, sub/unsubscribe,complete and values
 *

crunchie84

#
# Include this in your own .gitconfig by using the
# [include] directive with the path to this file
#
# [include]
#    path = ~/.gitconfig.aliases
#
# If you don't have any existing includes, you can add this via the following command
# 
#   git config --global include.path ~/.gitconfig.aliases