April 14, 2019
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Another fundamental of functional programming is a solid understanding of pure functions. A pure function is one in which its output is derived solely from its inputs, with no side effects. I know that might still seem like gibberish to some of you, so I'll break this down and hopefully make it…
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Just Enough FPApril 08, 2019
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Making sense of functional programming requires a solid understanding of a few fundamental concepts. In my opinion, the first one you need to learn is the concept of "higher order functions". A higher order function is a function that meets at least one of the following requirements: It accepts a…
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Just Enough FPMarch 22, 2019
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In 2017, I came across The Mostly Adequate Guide to Functional Programming by Brian Lonsdorf . It's an incredible resource and introduction to functional programming in JavaScript. It inspired me to start giving talks about functional programming in 2018. After giving the talk several times, I…
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Just Enough FPFebruary 02, 2019
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A few months back, Jason Lengstorf and I started a gathering for people in Portland to get together, relax, and get to know one another. Our biggest night so far had over 30 people crowding this cozy little backroom of a local bar. It was great. A lot of people have expressed experiencing…
January 27, 2019
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If you look just above the title of this post, you should see a beard icon and the phrase ${strokes} bestowed . It's a fun little indicator of how many likes this post has received to date. I built this using a Firebase Realtime Database . For those of you unfamiliar with Firebase, it's a cool…
January 24, 2019
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I made mention in my "What Are State Machines?" post of the fact that a state machine is a graph data structure. Each state a node. Each transition an edge triggered by an event. You remember, right? No worries if you don't, now you know. I also mentioned you can do cool things like create a…
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State MachinesJanuary 22, 2019
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In a previous post , I explained what a state machine is and how to build one from scratch. In this post, we're going to learn how to make our first state machine using the XState library . First step? You guessed it. Install the library into your project. Next, we're going to get the Machine…
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State MachinesJanuary 21, 2019
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Defining and managing state in software is a difficult challenge. Even simple systems can often be more complicated than they first seem. State machines provide a reliable interface for handling these systems and are capable of handling problems from the simple to the highly complex. A state machine…
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State MachinesJanuary 09, 2019
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A couple weeks back now, I was starting to write a blog post to recap my 2018. I thought it would be a good idea to reference my goals for 2018 and started to review that post when I discovered something interesting. As I was reading a paragraph, I noticed some words that didn't sound like my voice…
November 10, 2018
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Before I dive into this idea of mine, I want to tell you, I've been scared to write it out. It's been in my head for a few months, but I'm genuinely nervous to share it with others. I don't know how you're going to receive it. Hopefully well, because I'm going for it. Some of you might know, I was a…
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Introduction to State Machines and XState
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