Dropping elements left and right: fun with ruby arrays

Exploring ways of dropping elements from arrays: a look at Array#drop_while, implementing and benchmarking a counterpart Array#drop_while_right. More of an experiment and an excuse to play with refinements and benchmark-ips then something that would be used in production code :) [more inside]

Unicode Micro Libraries

Unicode X is a set of libraries providing specific Unicode-related functionality, like finding out the script a character belongs to or retrieving the name of a character.

Refactor away duplication in your RSpec tests using the Parameterized Test Method

What do you do when you need to run the same test multiple times, but with different parameters? If you copy and paste the test, you end up with a hard-to-read test file. You can’t easily tell how the tests differ from one another. Parameterized test method to the rescue!

The Optimist’s Guide to Pessimistic Library Versioning

Richard Schneeman looks at different strategies for declaring dependencies in libraries and how we might be able to make major version bumps easier into the future. Article here.

Don't tie jQuery to the Rails

It’s time for jQuery to go. It’s a great library but it’s not a part of Rails. I was recently auditing a site for dependencies. Skimming the list of JavaScript libraries I blew right by jQuery. Then a thought popped into my head. The bits of dynamic front-end were built using React. Where was jQuery being used? [more inside]

How to turn your service into a Heroku add-on

Butter CMS takes us through exactly how to build a Heroku add-on and shares their experience with the entire process.

RubyFlow Turns 8 Years Old

I just noticed that RubyFlow’s first post was 8 years and a few days ago. Thanks for all of your support and (14675!) posts over the years :-)

Playing With Google Vision API: Ruby Slack Bot Tutorial

Hey folks, I wanted to present a simple bot using Google Vision API in Ruby, created by my colleague Szymon. This tutorial will help you when building apps that require visual content identification. It’s open source, so feel free to use the code, contribute and improve where you find necessary. Your feedback is very welcome! Ruby Slack Bot: Using Google Vision API Tutorial

Rails 5 adds warning when fetching big result set with Active Record

Running into memory issue by accidentally loading large number of records in Rails ? Rails 5 has a solution. [more inside]

Testing PDF generation with Ruby

If you are generating PDFs in your apps, you should also test them. Here are my thoughts on how to test PDF generation in Ruby. I would welcome other tips/approches you do.

Background jobs in Ruby

Queue management systems are used to process background jobs, so these jobs don’t interfere with the user experience. There are systems that use a database, and others that use Redis instead. Even Ruby on Rails has standardized it with ActiveJob so the application uses the same syntax for any system.

Rails 5 allows directing logs to STDOUT in production.

Global Hotkeys Management for toggling windows in Linux/X11

I’ve just released global_hotkeys_manager a new gem that integrates some command line tools like xbindkeys and xdotool to enable you to assign global hotkeys (shortcuts) to existing windows that will toggle their visibility for quick access. It supports Linux/X11. [more inside]

Don't you Struct.new(...).new(...)

Have you ever seen Struct.new(...).new(...) in code or have you written it yourself? Have a look at this post ideas for reasons why not to do it, such as the immense performance hit.

From Rails to Node.js – Initial Observations

My initial observations coming to node.js from a rails background. [more inside]

Save Your Users Bandwidth Using Ugly Mode In SLIM or HAML

Notifyor now with Linux support

Link: The new version of notifyor now supports growl messages on linux. Notifyor is a gem which generates growl messages on your desktop when something happens in your rails app.

Things to Consider when Metaprogramming in Ruby

Metaprogramming in Ruby is a polarizing topic. The most common purpose of Ruby metaprogramming is for code to alter itself at runtime. Metaprogramming can be used to achieve terse and more flexible code. However, it is not without its cost. As with most things, nothing of value is free, even metaprogramming.

Slide Show Quick Starter Kit - Write Your Talks in Text w/ Markdown (n Ruby Helpers)

Hello, I’ve put together a quick starter kit for writing your talks in plain text with markdown formatting conventions. What’s included? 1) A first sample talk (see sample1.text) 2) A second sample talk (see sample2.text) incl. some (ruby) macros/helpers e.g. left, right, step, etc. ++ Use a (static) slide show builder / generator to build a web page that is an all-in-one-page handout and a live slide show all at once e.g. $ slideshow build sample1.text and than open sample1.html in your browser of choice. Cheers.

From Rails to Hanami Part 2: Sequel Migrations, Model Validations, Specs and Fixtures

The ‘real world problems’ driven guide to use Hanami on production:

Metaprogramming in The Wild

How are some of the most popular open-source projects making use of metaprogramming?

Ruby Methods: differences between load, require, include and extend in Ruby.

One day, as your code grows, you may find it hard to organize your application. At this point, the best idea is to split your code into several files. [more inside]

Rails Emoji Picker 0.1.5 was released!

A lot of bugs were fixed since the first release. Now rails emoji picker is ready to use Heroku Example - Example on Heroku Github Repository - Rails Emoji Picker [more inside]

Reifier

Toy rack app server written in ruby [more inside]

Simple Multitenancy with Rails and Pundit

Minimalist way to get a multitenant Rails app up and running.