A collection of posts about my favourite topics in programming

Lessons learned from my first 10k LOC in Elm

I have been working on a personal project of mine for the last couple of months that has the frontend written in Elm. So far everything is going great and the project is around 10k lines of code. I have noticed a few reoccurring patterns of mine that I have learned so far and want to share, so here are 5 things I have learned:

  1. Decoding Empty Lists & Strings When I first started the project, I had a lot of types with fields declared like this:
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Pratica, now fully in Typescript!

Pratica is now written completely in Typescript! What is Pratica? Pratica is a super tiny 720B monadic library, comparable to Crocks or Monet JS. Why would I use Pratica? If you want to start writing more functional code in Javascript or Typescript, this is a great library for learning some FP fundamentals, while also making your code safer and more resilient to runtime bugs. It’s super tiny size and easy to read dot-chaining syntax makes it easy to get started in any project.
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Elm’s Remote Data Type in Javascript

Often in web development there is this recurring pattern of having to fetch some data from some server through a rest api, and then show it someway in the UI. This often includes storing this data somewhere on the client side, either in a store or just a variable you can reference, and this is where the Remote Data type can help. Usually saving the data would look something like this in JS:
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Comparing Elm to React/Redux

I have recently been exploring creating web apps in Elm and found it to be a breath of fresh air compared to the usual React/Redux projects I have worked on in the past. *Disclaimer: I still think React/Redux is great and viable for large teams if done correctly. This article will just explain my pain points with it while working on large teams at various companies, and why I think Elm can be a better alternative in some cases.
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F# for JS Devs

I recently gave an internal talk at my work about the similarities of F# compared to JS. It was generally well received, and I would like to convert that talk into a blog post for others who may be interested. This is by no means an exhaustive list of features in F#, but the point of this post is to show familiar JS code and how it can be written equivalently in F#, because I believe showing examples like this is the best way of learning a new language and has a better chance of adoption.
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Basic monads in Javascript

I’m going to explain some common monads that you can start using in your javascript today. Monads will help make your code easier to read, more maintainable and most importantly - safer. Maybe The Maybe monad is used for dealing with nullable data. Often we like to process data in javascript, like formatting, doing calculations, filtering and sorting. But often we need to make sure the data is there before doing anything.
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