You’ve learned that using
Continue reading “Maybe a Default Good Idea”
Maybe‘s allows you to get rid of null pointer exceptions (i.e. “undefined is not a function”). However, now your application fails and gives no indication as to why. At least errors would leave a stack trace that may provide a hint as to where the problem originated. How does this happen and what should you be doing instead?
A co-worker asked about code organization in Functional Programming. He’s working with a bunch of Java developers in Node for a single AWS Lambda, and they’re using the same style of classes, various design patterns, and other Object Oriented Programming ways of organizing code. He wondered if they used Functional Programming via just pure functions, how would they organize it?
Continue reading “Code Organization in Functional Programming vs Object Oriented Programming”
I participated briefly in the Advent of Code 2018. Every year, they post 31 coding puzzles, 2 per day. You have to solve them before you can proceed to next one. I wanted to post about what I learned. I’ve never participated before, and wanted to use it an excuse to force myself to use a Functional Programming language. I use Functional Programming concepts in my day job, but never had the opportunity to immerse myself, and force myself, to accomplish harder challenges in a pure FP language. It was doubly hard because the exercises are NOT what I do at my day job at all and are challenging. They were very hard in a fun way, though. Below I’ll cover the 6 exercises I did (I threw in the towel on Day 7), and explain some of the interesting nuances I found either with the exercise and thinking in FP… and thinking in Elm.
Continue reading “Advent of Code 2018 in Elm Review”
Functional Programming is built around composing pure functions. Composing functions means taking all those useful functions you wrote and using them together to build more powerful functions, and even applications. This article will cover the 4 main ways to do that with synchronous code which includes the new pipeline operator. A future article will handle asynchronous options as well as dealing with partial applications and curried functions. If you’d like to play with the examples yourself, I have a Code Sandbox setup with basic and advanced examples.