Did you know TypeScript has an API that allows you to write scripts that make certain checks on your code? It's very rarely useful for application developers, but it's used by IDE plugins and linting tools (e.g., ESLint). Interestingly, in the last year, we'

Before I was actually getting paid to write code, I got extremely accustomed to picking up new frameworks and libraries very quickly. I'd bootstrap a new web application in Rails in one week, but then the next week I'd be using Python and Flask for a

I wrote some code over 2 years ago that couldn't be properly typed with either Flow [https://flow.org/] or TypeScript [https://www.typescriptlang.org/], but with the introduction of Variadic Tuple Types [https://github.com/microsoft/TypeScript/pull/39094] coming in TypeScript 4.0, I decided to

Disclaimer: this article assumes intermediate knowledge of both TypeScript and React. Concepts you should be familiar with include Higher Order Components [https://reactjs.org/docs/higher-order-components.html] and utility TypeScript types such as Pick<T, K> and Omit<T, K> [https://www.typescriptlang.org/

Lately, I've been thinking about how one can decide whether to annotate or let TypeScript infer the types of variables/expressions whenever it can. If you don't know what Type Inference is, refer to the official guide [https://www.typescriptlang.org/docs/handbook/type-inference.html]

We recently ported MemSQL Studio [https://www.memsql.com/manage/]'s 30 thousand lines of JavaScript from using Flow to TypeScript. In this article, I describe why we ported our codebase, how it took place and how it has been working out for us. -------------------------------------------------------------------------------- Disclaimer: my goal with this

Recently, I was struggling with integrating redux-form [https://redux-form.com/] into a TypeScript [http://www.typescriptlang.org/] project. I hit a couple of bugs in the type definitions for this project, and I went into my node_modules and fixed them. Of course, as a good open source

I've been using Flow [https://flow.org/] at work for more than a year and there's a few things that I really wish I had known from the start. Some of these could have been found by simply reading the entire documentation from start to finish

Around a year and a half ago, I transitioned from a full time onsite position to a full time remote position (same employer). Many friends and coworkers tried to pick my mind on why I ended up working remotely. It was unexpected, especially because I had been a bit vocal

Disclaimer: this is a blog post version of the talk I gave at the ReasonML Munich Meetup [https://www.meetup.com/Munich-ReasonML-Meetup/events/245697054/]. If you want to watch the talk, it's on Youtube: If you're just looking for the slides, you can find

If you haven't heard about Reason, you should probably look into what it is [https://reasonml.github.io/] first. However, if you have a JavaScript background and have just recently heard about Reason, the rest of the article should make sense for you. If you're looking

This past weekend two friends (Pedro Paredes and “Michel” Duarte) and I took part in a hackathon held in our hometown — Coimbra, Portugal. It’s called “Shift APPens” and participants are allowed to build both apps and games in only 48 hours. I think our project was quite special, hence

This past weekend I organized a local Ludum Dare meetup in my hometown, Coimbra. For those of you who haven’t heard of it, Ludum Dare is a game making competition that is held over the Internet three times a year. The goal is for participants to create a game

You might have heard about events such as Web Summit [https://websummit.net/] or TechCrunch Disrupt [http://techcrunch.com/event-type/disrupt/]. In these events, dozens to hundreds of startups sit along in tiny booths and some more are “launched live on stage” for thousands of attendees. These events are

This summer I was lucky enough to grab an internship at Unbabel [http://unbabel.com], a Y Combinator startup that provides a language translation solution - "AI Powered Human Quality Translation". Because they are based in Lisbon, Portugal, I moved there for the Summer with a couple of friends

Competitive Programming refers to a sport where participants (contestants) have to write solutions for a set of given problems in a certain amount of time. The solutions themselves have to be correct and run under a time limit as well. If you already knew what Competitive Programming is, then you

Codebits [http://codebits.eu] is the largest and most important hackathon in Portugal. I participated for the first time from this last Thursday to Saturday. It. Was. Amazing. As a hackathon, it includes a programming competition where you have to create something new in 48 hours and then pitch it

Last weekend, I took part in a hackathon organized right where I live - Coimbra, Portugal. The name of the event is Shift APPens [http://www.shiftappens.com] and around 50 people took part in teams to try and make a fresh new app in just 48 hours. Some friends and

Ever since the first news about Firefox OS came out I’ve been fascinated by the project. About two weeks ago, I decided that I really wanted a Firefox OS phone, but I really can’t afford it so around a week ago I decided I would give a try