2020

Oct 13

Ruby Telegram bot posting a Corona Heatmap Image for Rheinland-Pfalz, Germany

Oct 08

zsh yarn command not found

Sep 21

Telegram Login Ruby Roda Demo

Jun 17

Are you a road cyclist and a web developer?

Jun 11

I rediscovered "asdf" and what it became is simply awesome

Mar 30

Ruby and Ferrum select option from dropdown

Jan 13

A simple and easy NodeJS Telegram bot

2019

Sep 25

A short take on VueJs - Pizza Pi Comparator

Sep 11

Finally, I accept JS for what it is

Apr 01

Setup a VPS with Traefik and Docker

Feb 10

Rails Console for Sinatra

2018

Dec 02

Scope your OOP Coffeescript in modern Rails Apps

Aug 23

Use Go To Definition in Atom

Jul 22

CSS Grid Layout in 3 lines of code

Jun 25

youtube-dl 'ERROR: av_interleaved_write_frame(): Invalid argument'

Jun 10

ActiveRecord find where not null or empty

May 03

Clean up your branch, before submitting a Pull Request

Apr 13

Ruby's Safe Navigation Operator

Apr 08

List all classes of an element with jQuery

Mar 24

Install and run Docker on a Raspberry Pi

Mar 15

ActiveRecord Find By Year, Day or Month on a Date field

Mar 03

Install pg gem on Mac with Postgres.app

Feb 11

Visualization of Algorithms

Feb 11

Write closures with Python

Feb 10

Roman Numerals with Ruby

Feb 09

Refactor like a boss with Sandi Metz

Feb 09

Ruby 2.5 by example: Hash.slice

Feb 07

Ruby, Watir and Chrome on Heroku

Feb 06

Ruby's blocks and scope

Feb 01

Ruby's new yield_self

Feb 01

Load Database into a Pandas DataFrame using sqlAlchemy

Jan 29

Test OmniAuth protected Controllers (Rails)

Jan 24

Ruby vs. Python reverse()

Jan 19

Reading Yaml Config Files for Ruby Scripts

Jan 18

Sync Directories with Ruby (no deletion)

Jan 17

Base64 image encoding / decoding in ruby

Jan 16

Plot ECDF Charts Python Data Science

Jan 16

Simple Jekyll Gallery

Jan 15

Finding Anagrams with Elixir

Jan 08

Understand Recursion. An example in Python.

2017

Dec 31

Cluster Computing with some Raspberry Pis

Dec 28

Install Python 3.6 on a Raspberry Pi 2 or 3

Dec 20

Find all devices in network

Dec 18

Count Intersections of a list with a 2D-Array

Dec 14

Pop a Display Notification from a Bash Script on Mac

Dec 12

Loot a Blogspot Blog and Save the Contents as Markdown (for a Jekyll backup)

Dec 11

Fibonacci in Python

Dec 11

Optional Command-Line Arguments for Python

Dec 04

Beautiful and idiomatic Python with Raymond Hattinger

Dec 04

Exceptions in Ruby - a Beastiary

Nov 25

Format USB-Stick from Terminal in Mac OS X

Nov 20

Use heroku for Automated Tasks

Nov 17

Plough Through Large Datasets From a Database with Python's SQLAlchemy

Nov 13

jQuery Plugin for showing google places reviews

Sep 04

Scrape JS Rendered Websites with Ruby and PhantomJS

Aug 25

Parallel Http Requests with HTTPoison in Elixir

Aug 24

Generate PDFs with wkhtmltopdf, wicked_pdf in Rails without breaking your layout (tables)

Aug 21

Tail-Call optimized Fibonacci Calculation in Elixir

Aug 18

Solving Einsteins Riddle with Elixir

Aug 14

Simple Linear Regression with Python

Jun 06

Arel to the rescue

May 19

Implement Permutation in Elixir

May 18

Set hreflang for SEO in a globalized Rails App

May 06

Setup a Sinatra App on your Raspberry Pi and autostart the app using asdf and cron

May 04

Do not reinvent the wheel, use programming-idioms!

Apr 26

Do NOT enumerate Enumerators

Apr 25

Conditional Index with Postgresql and Rails

Apr 20

Sexy Submit Buttons in Rails 4+

Apr 02

Count Objects in a Memory Efficient Way in Rails

Mar 31

Hit Strings with the Shovel

Mar 23

Persistent cookies with Sinatra

Mar 23

Active Record and dup vs clone

Mar 22

Debounce functions with coffeescript

Mar 20

Working with Ruby's magical Eigenclass

Mar 18

Using class_eval

Mar 14

Simple Internal DSL with Ruby

Mar 04

Destructuring with Ruby

Feb 28

Special treatment for last element in an Array

Feb 19

BCrypt in Ruby

Feb 13

Use Modules to boost your OOP

Feb 13

Set a standard value for a form element

Feb 13

Set standard date and time format in a rails app

Feb 10

Enforce Error Callback in an AJAX Call from controller method in Rails

Feb 02

Obfuscate email addresses for Spambots and Crawlers

Jan 31

strftime does not localize

Jan 27

Basic Array Operations in Ruby

Jan 19

Custom fields in collection_select

Jan 15

Update your letsencrypt email credentials with certbot

Jan 14

Using certbot to establish SSL in a Rails App on heroku

Jan 13

Rails Gem Bootstrap Sass, but the icons won't work

Jan 12

Send a custom flash notice via a link_to helper in Rails

Jan 12

Show current git branch in Terminal

Jan 09

List and Count the Tables of your Rails App

2016

Dec 25

Copy Arrays and Lists

Oct 24

Login to a CSRF-Token Secured Website Using Mechanize

Oct 08

Turbolinks is misunderstood

Sep 27

XML Sitemap in Rails without using a Gem

Sep 24

Combine two ActiveRecord::Relation objects

Sep 20

Around Filter in Rails Controllers

Sep 17

Per Page JavaScript in a Rails App

Sep 15

Make jQuery and Turbolinks work together in a Rails App

Sep 11

Prevent Double Clicks in Forms

Sep 09

Eager Load for Samples of Data to Count Relations in Rails