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It’s time to start catching up with Combine! If you’ve been with me and remember the initial breakdown using SwiftUI, here’s what I wanted to do: Make a ListMake a Row for that ListCreate a view model We still haven’t decided on what’s the best approach to SwiftUI’s declarative way of building UI architecture-wise, but it seems to be leaning heavily towards MVVM, or at least some variant of it. Si

2017 was a stable year for the Ruby ecosystem. There weren’t any new libraries that exploded in popularity, but work on existing gems hummed along. As for the language itself, we got Ruby 2.5 which continued with performance optimizations and incremental changes which make our lives easier. These changes are in line with Ruby 3×3 goals which were announced back in 2016, and there are future enhanc

A few years ago, I wrote an article about moving from Django to Rails. As I said there, I don’t find it too hard moving from one programming language to another, as long as you have good knowledge on concepts they all share. Each language, of course, brings something on its own. Last year, I decided to try something new. As a Ruby developer, Elixir proved to be a logical choice, and I have to admi

Dealing with various sources of data in web applications requires us to create services that will extract information from CSV, Excel, and other file types. In that case, it’s best to use some existing libraries, or if your backend is on Rails, use gems. There are many gems with very cool features like CSVImporter and Roo. But you can also use plain Ruby CSV. Either way, if those are small CSV fil

Have you ever had to write a nicely indented multiline string in Ruby? If you have, you already know that Ruby doesn’t have a nice out-of-the-box solution for this problem. At least it hadn’t until a week ago when the squiggly heredoc was introduced… To be honest, I actually rarely need to use multiline strings, but when I do, it really gets on my nerves that Ruby lacks an upfront way to do them.

Another year is behind us and many things have changed in the web development world – the number of JavaScript frameworks continues to grow, new programming languages are being developed faster than ever and people are still talking about the death of Ruby and Rails. We did a little research on the use of Ruby gems and created some stats for 2016 which prove otherwise. Sources At the beginning of

2015 is behind us and the market is flooded with new languages and frameworks. A lot of them seem promising, and in the same time a lot of developers are talking about the death of Ruby and Rails. Rubygems is the official package manager for Ruby and we decided to crunch up some stats for 2015 and see what’s what. The approach For analyzing the Rubygems database we got ahold of the database dumps.

Swift is gaining popularity each day. If you’re starting a new project, chances are that you’ll decide to write it in Swift. To make the transition easier for you and save you the time you would spend writing certain components for your app, here are 10 libraries that we think every iOS developer should know about! Just like we mentioned in our Top 5 iOS libraries every iOS developer should know a

Everybody that has ever implemented file upload by hand in a Rails app knows that it’s no cakewalk, not to mention a major security risk. That’s why we use gems to handle file upload for us! But often it’s hard to decide which one to choose for your project. There are three major file uploader gems in the Rails ecosystem, namely, Paperclip, CarrierWave and Refile. These gems upload and catalog fil

Refactoring is the craft of improving the design of an existing code without changing its external behavior. Just like with everything else, you get better at it with practice and continuous learning. Check out a couple of talks given by some of the best Ruby developers that point out common mistakes and how to deal with them. I’ve curated five of my favorite talks on code refactoring taking into

Ever needed a progress bar for some long-running task in your Rails application? You searched Google and couldn’t find anything that easily integrates with Rails? Well, we created a progress_job gem that helps with that problem. Progress_job is a gem that builds upon delayed_job to give you a simple progress bar you can use in your views. Create a class with your long-running task inside, update t

Doing software development with a Continuous Integration process involves a lot of automated testing. Doing tests consumes precious time so we decided to do some tinkering to make our test suite load and execute faster. As your test suite grows, it takes longer to run the tests, and soon you have a problem because your test suite is running for over 10 minutes. Now you have two options: reduce the

Keeping your code clean and organized while developing a large Rails application can be quite a challenge, even for an experienced developer. Fortunately, there is a whole category of gems that make this job much easier. For most people, dead/inefficient code will build up over time. Others will find themselves in a similar predicament when they take over someone else’s project. Actually, my own e

There’s an updated post about this, check out top 10 Android libraries every Android developer should know about. In the last year or so, Android development has really come of age. Android Studio with Gradle at its core is a dash of light after Eclipse. Besides that, there are quite a few open source libraries that we use on a daily basis. Here is a selection of five of our favorite ones and a li

Every web application needs to be deployed to a server at one point, and there are several ways to do that. If you are running Rails, a VPS/dedicated server, what’s the best way to do that? If you’ve never operated a VPS or dedicated server and have used a PaaS solution like Heroku or AppFog, you probably never had to bother with deploying your application. This is because the PaaS did all the hea

Testing on multiple mobile devices is costly, time consuming and the default Android emulator is notoriously slow. So, what should we do? That’s easy – start using a properly fast Android emulator. When developing Android applications, you have to keep in mind all the different Android OS versions and various screen sizes and resolutions. The main objective before releasing an application is to fi