Categories

• Rails 29
• Javascript 9
• Ruby 53
• Python 14
• Mac 4
• Terminal 2
• Git 2
• Frontend 1
• Heroku 3
• Hosting 2
• Css 2
• Html 2
• Coffeescript 1
• Raspberrypi 4
• Elixir 5
• Datascience 2
• Jquery 1
• Sinatra 2
• Network 1
• General 1
• Mysql 1
• Bash 1
• Ide 1
• Editor 1

Rails

• Rails Console for Sinatra (February 10, 2019)
• Scope your OOP Coffeescript in modern Rails Apps (December 02, 2018)
• ActiveRecord find where not null or empty (June 10, 2018)
• ActiveRecord Find By Year, Day or Month on a Date field (March 15, 2018)
• Test OmniAuth protected Controllers (Rails) (January 29, 2018)
• Generate PDFs with wkhtmltopdf, wicked_pdf in Rails without breaking your layout (tables) (August 24, 2017)
• Arel to the rescue (June 06, 2017)
• Set hreflang for SEO in a globalized Rails App (May 18, 2017)
• Conditional Index with Postgresql and Rails (April 25, 2017)
• Sexy Submit Buttons in Rails 4+ (April 20, 2017)
• Set a standard value for a form element (February 13, 2017)
• Set standard date and time format in a rails app (February 13, 2017)
• Enforce Error Callback in an AJAX Call from controller method in Rails (February 10, 2017)
• strftime does not localize (January 31, 2017)
• Custom fields in collection_select (January 19, 2017)
• Update your letsencrypt email credentials with certbot (January 15, 2017)
• Using certbot to establish SSL in a Rails App on heroku (January 14, 2017)
• Rails Gem Bootstrap Sass, but the icons won't work (January 13, 2017)
• Send a custom flash notice via a link_to helper in Rails (January 12, 2017)
• List and Count the Tables of your Rails App (January 09, 2017)
• Login to a CSRF-Token Secured Website Using Mechanize (October 24, 2016)
• Turbolinks is misunderstood (October 08, 2016)
• XML Sitemap in Rails without using a Gem (September 27, 2016)
• Combine two ActiveRecord::Relation objects (September 24, 2016)
• Around Filter in Rails Controllers (September 20, 2016)
• Per Page JavaScript in a Rails App (September 17, 2016)
• Make jQuery and Turbolinks work together in a Rails App (September 15, 2016)
• Prevent Double Clicks in Forms (September 11, 2016)
• Eager Load for Samples of Data to Count Relations in Rails (September 09, 2016)

Javascript

• Scope your OOP Coffeescript in modern Rails Apps (December 02, 2018)
• List all classes of an element with jQuery (April 08, 2018)
• jQuery Plugin for showing google places reviews (November 13, 2017)
• Debounce functions with coffeescript (March 22, 2017)
• Enforce Error Callback in an AJAX Call from controller method in Rails (February 10, 2017)
• Turbolinks is misunderstood (October 08, 2016)
• Per Page JavaScript in a Rails App (September 17, 2016)
• Make jQuery and Turbolinks work together in a Rails App (September 15, 2016)
• Prevent Double Clicks in Forms (September 11, 2016)

Ruby

• Rails Console for Sinatra (February 10, 2019)
• ActiveRecord find where not null or empty (June 10, 2018)
• Ruby's Safe Navigation Operator (April 13, 2018)
• ActiveRecord Find By Year, Day or Month on a Date field (March 15, 2018)
• Install pg gem on Mac with Postgres.app (March 03, 2018)
• Roman Numerals with Ruby (February 10, 2018)
• Refactor like a boss with Sandi Metz (February 09, 2018)
• Ruby 2.5 by example: Hash.slice (February 09, 2018)
• Ruby, Watir and Chrome on Heroku (February 07, 2018)
• Ruby's blocks and scope (February 06, 2018)
• Ruby's new yield_self (February 01, 2018)
• Test OmniAuth protected Controllers (Rails) (January 29, 2018)
• Ruby vs. Python reverse() (January 24, 2018)
• Reading Yaml Config Files for Ruby Scripts (January 19, 2018)
• Sync Directories with Ruby (no deletion) (January 18, 2018)
• Base64 image encoding / decoding in ruby (January 17, 2018)
• Simple Jekyll Gallery (January 16, 2018)
• Loot a Blogspot Blog and Save the Contents as Markdown (for a Jekyll backup) (December 12, 2017)
• Exceptions in Ruby - a Beastiary (December 04, 2017)
• Use heroku for Automated Tasks (November 20, 2017)
• Scrape JS Rendered Websites with Ruby and PhantomJS (September 04, 2017)
• Generate PDFs with wkhtmltopdf, wicked_pdf in Rails without breaking your layout (tables) (August 24, 2017)
• Arel to the rescue (June 06, 2017)
• Set hreflang for SEO in a globalized Rails App (May 18, 2017)
• Setup a Sinatra App on your Raspberry Pi and autostart the app using asdf and cron (May 06, 2017)
• Do not reinvent the wheel, use programming-idioms! (May 04, 2017)
• Do NOT enumerate Enumerators (April 26, 2017)
• Conditional Index with Postgresql and Rails (April 25, 2017)
• Sexy Submit Buttons in Rails 4+ (April 20, 2017)
• Count Objects in a Memory Efficient Way in Rails (April 02, 2017)
• Hit Strings with the Shovel (March 31, 2017)
• Persistent cookies with Sinatra (March 23, 2017)
• Active Record and dup vs clone (March 23, 2017)
• Working with Ruby's magical Eigenclass (March 20, 2017)
• Using class_eval (March 18, 2017)
• Simple Internal DSL with Ruby (March 14, 2017)
• Destructuring with Ruby (March 04, 2017)
• Special treatment for last element in an Array (February 28, 2017)
• BCrypt in Ruby (February 19, 2017)
• Use Modules to boost your OOP (February 13, 2017)
• Set a standard value for a form element (February 13, 2017)
• Set standard date and time format in a rails app (February 13, 2017)
• Enforce Error Callback in an AJAX Call from controller method in Rails (February 10, 2017)
• strftime does not localize (January 31, 2017)
• Basic Array Operations in Ruby (January 27, 2017)
• Custom fields in collection_select (January 19, 2017)
• Update your letsencrypt email credentials with certbot (January 15, 2017)
• Using certbot to establish SSL in a Rails App on heroku (January 14, 2017)
• Rails Gem Bootstrap Sass, but the icons won't work (January 13, 2017)
• Send a custom flash notice via a link_to helper in Rails (January 12, 2017)
• List and Count the Tables of your Rails App (January 09, 2017)
• Copy Arrays and Lists (December 25, 2016)
• Login to a CSRF-Token Secured Website Using Mechanize (October 24, 2016)

Python

• Write closures with Python (February 11, 2018)
• Load Database into a Pandas DataFrame using sqlAlchemy (February 01, 2018)
• Ruby vs. Python reverse() (January 24, 2018)
• Plot ECDF Charts Python Data Science (January 16, 2018)
• Understand Recursion. An example in Python. (January 08, 2018)
• Cluster Computing with some Raspberry Pis (December 31, 2017)
• Install Python 3.6 on a Raspberry Pi 2 or 3 (December 28, 2017)
• Count Intersections of a list with a 2D-Array (December 18, 2017)
• Fibonacci in Python (December 11, 2017)
• Optional Command-Line Arguments for Python (December 11, 2017)
• Beautiful and idiomatic Python with Raymond Hattinger (December 04, 2017)
• Plough Through Large Datasets From a Database with Python's SQLAlchemy (November 17, 2017)
• Simple Linear Regression with Python (August 14, 2017)
• Copy Arrays and Lists (December 25, 2016)

Mac

• Install pg gem on Mac with Postgres.app (March 03, 2018)
• Pop a Display Notification from a Bash Script on Mac (December 14, 2017)
• Format USB-Stick from Terminal in Mac OS X (November 25, 2017)
• Show current git branch in Terminal (January 12, 2017)

Terminal

• Format USB-Stick from Terminal in Mac OS X (November 25, 2017)
• Show current git branch in Terminal (January 12, 2017)

Git

• Clean up your branch, before submitting a Pull Request (May 03, 2018)
• Show current git branch in Terminal (January 12, 2017)

Frontend

• Rails Gem Bootstrap Sass, but the icons won't work (January 13, 2017)

Heroku

• Use heroku for Automated Tasks (November 20, 2017)
• Update your letsencrypt email credentials with certbot (January 15, 2017)
• Using certbot to establish SSL in a Rails App on heroku (January 14, 2017)

Hosting

• Update your letsencrypt email credentials with certbot (January 15, 2017)
• Using certbot to establish SSL in a Rails App on heroku (January 14, 2017)

Css

• CSS Grid Layout in 3 lines of code (July 22, 2018)
• Obfuscate email addresses for Spambots and Crawlers (February 02, 2017)

Html

• CSS Grid Layout in 3 lines of code (July 22, 2018)
• Obfuscate email addresses for Spambots and Crawlers (February 02, 2017)

Coffeescript

• Debounce functions with coffeescript (March 22, 2017)

Raspberrypi

• Install and run Docker on a Raspberry Pi (March 24, 2018)
• Cluster Computing with some Raspberry Pis (December 31, 2017)
• Install Python 3.6 on a Raspberry Pi 2 or 3 (December 28, 2017)
• Setup a Sinatra App on your Raspberry Pi and autostart the app using asdf and cron (May 06, 2017)

Elixir

• Finding Anagrams with Elixir (January 15, 2018)
• Parallel Http Requests with HTTPoison in Elixir (August 25, 2017)
• Tail-Call optimized Fibonacci Calculation in Elixir (August 21, 2017)
• Solving Einsteins Riddle with Elixir (August 18, 2017)
• Implement Permutation in Elixir (May 19, 2017)

Datascience

• Plough Through Large Datasets From a Database with Python's SQLAlchemy (November 17, 2017)
• Simple Linear Regression with Python (August 14, 2017)

Jquery

• jQuery Plugin for showing google places reviews (November 13, 2017)

Sinatra

• Rails Console for Sinatra (February 10, 2019)
• Use heroku for Automated Tasks (November 20, 2017)

Network

• Find all devices in network (December 20, 2017)

General

• Visualization of Algorithms (February 11, 2018)

Mysql

• ActiveRecord Find By Year, Day or Month on a Date field (March 15, 2018)

Bash

• youtube-dl 'ERROR: av_interleaved_write_frame(): Invalid argument' (June 25, 2018)

Ide

• Use Go To Definition in Atom (August 23, 2018)

Editor

• Use Go To Definition in Atom (August 23, 2018)