Tasks in Elm 0.18

Changes for the Better

Introduction

Elm tasks have always been a bit tricky for me. We generally use a task when we want to execute an asynchronous operation which may succeed or fail. Given that these aren’t pure functions, tasks are…

Single Page Web Apps in Elm

Client-side routing without the magic

Why Single Page Apps?

Once we start creating rich, responsive sites using JavaScript, it’s natural to want to keep as much of the functionality in the…

HTTP Error Checking in Elm

Pattern Matching is Your Friend

One area I’ve been glossing over as I’ve been working with HTTP in Elm is error checking. For the sample projects, I’ve either been ignoring errors or blindly converting any errors to a string and…

Elm: The Gateway Drug To Functional Programming

How I Met Elm

I’d been dabbling in functional programming off and on for a few years. I’d learned a little Haskell, I’d written some Elixir code, but still I didn’t have a feel for how I’d write anything big in a…

Testing JSON Decoders in Elm

One of the areas that causes the most pain when starting out with Elm is working with HTTP and JSON data. It’s complicated for a couple of reasons.

1. Data Type Precision

A Form Validation Library for Elm

My First Published Elm Library

I come to the Elm world with a fair amount of experience with Ruby and Rails. One of the things I most love about Rails is how it makes complex yet mundane tasks like creating CRUD endpoints and form validation…

Partial Function Application in Elm

A Powerful Abstraction Tool

What’s this Good For?

As I’ve developed as an Elm programmer, I’ve found that one of the most powerful concepts has been the ability to use partially…

Publishing Your First Elm Package

There’s nothing to fear

What’s Holding You Back?

Up until yesterday, I had never officially published an open source package in any language. It was intimidating for a couple of reasons. First, I didn’t…