In this post we will see why a SignalProducer is more suitable for a particular task than a Signal.…
If you follow me on twitter, you have been spammed these last days with a particular problem I have been tackling. It all started with this: I have a feeling that the way to create these relationships between completely different ViewModels (Parent<->Children) with ReactiveFeedback will need…
In this post I will share what I learned throughout the last year (2017) as a engineering manager of 10 people and how it has impacted me, as a professional. A manager should act as a buffer for his/her team. New features, spec changes, requirements are a constant flow.…
A lot has been said in the last years about MVC and its problems and how to tackle them.[1] Lately two posts (or series) in particular caught my attention: Much ado about iOS app Architecture. A Better MVC (Part1, Part2, Part3 and Part4) [1:1]. The problem with both…
Flatmap is one of those ubiquitous operators that, independently of your expertise level, will be present in your day-to-day work with ReactiveSwift. In this post I will talk about how we can leverage its strategies with an example. If you are not familiar with them: latest race merge concact concurrent[…
As a ReactiveSwift user myself, a lot of times, it's difficult to decide which operator to use. In this post I will share some of the mental process I go through when picking the most appropriate operator. In case you are not familiar with them[1]: Signal<T, E:…
Note: The goal of this post is to give the reader an intuition about the usage of a map versus a flatMap, instead of playing around with return types of each operation, until you pick the one that suits. A recurring topic during our interview process is "what's the…
Note 1: This post is not to hack your way through the interview process, but to avoid situations where you might put 10h of work, to just be rejected by a small mistake. Note 2: This checklist is not specific to babylon health. The goal is to enhance your chances…
A tale of composition 🌳 In my mind there are two ways of thinking about composition, when we have FRP or FP in the mix. The first one is often mentioned when compared to inheritance[1]: Composition over inheritance in object-oriented programming is the principle that classes should achieve polymorphic behaviour…
Note: this will be a series of posts about ReactiveSwift. When explaining ReactiveSwift, I tend to go away from FRP entirely and linger into familiar concepts, like the Optional type. The problem, is that the later doesn't provide all the necessary mental framework needed to explain certain peculiarities, so it…